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'''147''' ('''one hundred [and] forty-seven''') is the [[natural number]] following [[146 (number)|146]] and preceding [[148 (number)|148]].
'''147''' ('''one hundred [and] forty-seven''') is the [[natural number]] following [[146 (number)|146]] and preceding [[148 (number)|148]].


==In mathematics==
==In mathematics==
147 is the fourth [[centered icosahedral number]]. These are a class of [[figurate number]]s that represent points in the shape of a [[regular icosahedron]] or alternatively points in the shape of a [[cuboctahedron]], and are [[Magic number (chemistry)|magic numbers]] for the [[face-centered cubic lattice]].<ref>{{cite OEIS|A005902|Centered icosahedral (or cuboctahedral) numbers, also crystal ball sequence for f.c.c. lattice}}</ref> Separately, it is also a magic number for the [[diamond cubic]].<ref>{{cite OEIS|A007904|Crystal ball sequence for diamond}}</ref>
The digits forming 147 also form the left-hand column of a normal decimal numeric keypad.


It is also the fourth Apéry number <math>a_3</math> following [[19 (number)|19]], where<ref>{{cite OEIS|A005258|Apéry numbers}}</ref> <math display=block>a_n=\sum_{k=0}^n\binom{n}{k}^2\binom{n+k}{k},</math>
The binary form of 147 contains all the two-digit binary numbers (00, 01, 10 and 11).


with 147 the [[Composite number|composite index]] of the nineteenth [[triangle number]], [[190 (number)|190]].<ref>{{Cite OEIS |A002808 |The composite numbers: numbers n of the form x*y for x > 1 and y > 1. |access-date=2023-12-29 }}</ref><ref>{{Cite OEIS |A000217 |Triangular number: a(n) is the binomial(n+1,2) equivalent to n*(n+1)/2 that is 0 + 1 + 2 + ... + n. |access-date=2023-12-29 }}</ref>
==In the military==
* [[BQM-147 Dragon]] [[unmanned aerial vehicle]] is a tactical battlefield UAV operated by the [[US Marine Corps]]
* [[Ryan Model 147|Ryan Model 147 Lightning Bug]] was a drone, or [[unmanned aerial vehicle]] during the 1960s
* {{USS|Assail|AM-147}} was a [[United States Navy]] {{sclass-|Admirable|minesweeper|1}} during [[World War II]]
* {{USS|Blair|DE-147}} was a United States Navy {{sclass-|Edsall|destroyer escort|1}} during World War II
* {{USS|Cottle|APA-147}} was a United States Navy {{sclass-|Haskell|attack transport|1}} during World War II
* {{USS|General E. T. Collins|AP-147}} was a United States Navy ''General G. O. Squier''-class transport ship during World War II
* {{USS|Roper|DD-147}} was a United States Navy {{sclass-|Wickes|destroyer|1}} during World War II
* {{USS|Truckee|AO-147}} was a United States Navy ''Neosho''-class fleet oiler of the United States Navy during the [[Six-Day War]]


There are 147 different ways of representing one as a [[Egyptian fraction|sum of unit fractions]] with five terms, allowing repeated fractions,<ref>{{cite OEIS|A002966|Egyptian fractions: number of solutions of 1 {{=}} 1/x_1 + ... + 1/x_n where 0 < x_1 ≤ ... ≤ x_n}}</ref> and 147 different self-avoiding [[polygonal chain]]s of length six using horizontal and vertical segments of the [[integer lattice]].<ref>{{cite OEIS|A037245|Number of unrooted self-avoiding walks of n steps on square lattice}}</ref>
==In snooker==
* The [[Maximum break|highest possible break]] in [[snooker]], in the absence of fouls and refereeing errors
* ''147-Break'' is a 1983 documentary with [[Steve Davis]], an [[England|English]] professional [[snooker]] player
* The ''Snooker 147'' [[PlayStation 2]] game

==In transportation==
* The [[Volkswagen Type 147 Kleinlieferwagen]], produced from 1964 to 1974
* The [[Fiat 147]] was a three-door [[hatchback]] [[compact car]] produced in [[Brazil]] from 1976 until 1986
* The [[Alfa Romeo 147]] car, produced since 2000
* The first generation [[Lexus GS|Lexus GS 300]] is JZS147
* [[147th Street (Sibley Boulevard) (Metra)|147th Street (Sibley Boulevard)]] [[Metra Electric]] station in [[Harvey, Illinois]]


==In other fields==
==In other fields==
147 is the [[Maximum break|highest possible break]] in [[snooker]], in the absence of fouls and refereeing errors.<ref>{{cite encyclopedia | last1 = Hill | first1 = Andrew P. | last2 = Mallinson-Howard | first2 = Sarah H. | last3 = Madigan | first3 = Daniel J. | last4 = Jowett | first4 = Gareth E. | editor1-last = Tenenbaum | editor1-first = Gershon | editor2-last = Eklund | editor2-first = Robert C. | contribution = Perfectionism in Sport, Dance, and Exercise | doi = 10.1002/9781119568124.ch7 | edition = 4th | pages = 121–157 | publisher = Wiley | title = Handbook of Sport Psychology | year = 2020| isbn = 978-1-119-56807-0 | s2cid = 150348844 | url = http://ray.yorksj.ac.uk/id/eprint/1758/1/Routledge%20BC%2011%20-%20Hill%20-%20Accepted%20Version%20%28J%20Stoeber%2014%20Oct%2016%29.pdf }}</ref>
'''147''' is also:

* The year [[147|AD 147]] or [[147 BC]]
In some traditions, there are 147 [[psalms]]. However, current Christian and Jewish traditions list a larger number, leading to the suggestion that some of the psalms in the earlier numbering were split into multiple pieces.<ref>{{cite journal | last = Rabinowitz | first = L. | date = April 1936 | doi = 10.2307/1452095 | issue = 4 | journal = The Jewish Quarterly Review | jstor = 1452095 | pages = 349–368 | title = Does Midrash Tillim Reflect the Triennial Cycle of Psalms? | volume = 26}}</ref><ref>{{cite journal | last = Yarchin | first = William | date = July 2015 | issue = 3 | journal = Revue Biblique | jstor = 44092352 | pages = 355–370 | title = Is There an Authoritative Shape for the Hebrew Book Of Psalms? Profiling the Manuscripts of the Hebrew Psalter | volume = 122}}</ref>
* 147 AH is a year in the [[Islamic calendar]] that corresponds to [[764]] &ndash; [[765]] [[Common Era|CE]]
* [[147 Protogeneia]] is a large [[Asteroid belt|main belt]] [[asteroid]] with a low eccentricity and low inclination
* [[NGC 147|NGC 147 (DDO3)]] is a [[Dwarf spheroidal galaxy]] about 2.58 million [[light-year]]s away in the [[constellation]] [[Cassiopeia (constellation)|Cassiopeia]]
* [[Promethium-147]] is an [[isotope]] of [[promethium]] with a [[half-life]] of 2.62 years
* [[JWH-147]] is an [[analgesic]] drug used in scientific research, which acts as a [[cannabinoid]] agonist at both the [[cannabinoid receptor 1|CB<sub>1</sub>]] and [[cannabinoid receptor 2|CB<sub>2</sub>]] [[Receptor (biochemistry)|receptors]]
* [[Sonnet 147]]


147 is the telephonic number of the 27 [[Civil Police (Brazil)|Brazilian Civil Police forces]].
==1057==
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==See also==
* [[List of highways numbered 147]]
* [[147 (disambiguation)]]
* [[United Nations Security Council Resolution 147]]
* [[List of United States Supreme Court cases, volume 147|United States Supreme Court cases, Volume 147]]
* [http://www.biblegateway.com/passage/?search=Psalm+147&version=49; Psalm 147]


==References==
==References==

Latest revision as of 20:02, 1 December 2024

← 146 147 148 →
Cardinalone hundred forty-seven
Ordinal147th
(one hundred forty-seventh)
Factorization3 × 72
Divisors1, 3, 7, 21, 49, 147
Greek numeralΡΜΖ´
Roman numeralCXLVII
Binary100100112
Ternary121103
Senary4036
Octal2238
Duodecimal10312
Hexadecimal9316

147 (one hundred [and] forty-seven) is the natural number following 146 and preceding 148.

In mathematics

[edit]

147 is the fourth centered icosahedral number. These are a class of figurate numbers that represent points in the shape of a regular icosahedron or alternatively points in the shape of a cuboctahedron, and are magic numbers for the face-centered cubic lattice.[1] Separately, it is also a magic number for the diamond cubic.[2]

It is also the fourth Apéry number following 19, where[3]

with 147 the composite index of the nineteenth triangle number, 190.[4][5]

There are 147 different ways of representing one as a sum of unit fractions with five terms, allowing repeated fractions,[6] and 147 different self-avoiding polygonal chains of length six using horizontal and vertical segments of the integer lattice.[7]

In other fields

[edit]

147 is the highest possible break in snooker, in the absence of fouls and refereeing errors.[8]

In some traditions, there are 147 psalms. However, current Christian and Jewish traditions list a larger number, leading to the suggestion that some of the psalms in the earlier numbering were split into multiple pieces.[9][10]

147 is the telephonic number of the 27 Brazilian Civil Police forces.

See also

[edit]

References

[edit]
  1. ^ Sloane, N. J. A. (ed.). "Sequence A005902 (Centered icosahedral (or cuboctahedral) numbers, also crystal ball sequence for f.c.c. lattice)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  2. ^ Sloane, N. J. A. (ed.). "Sequence A007904 (Crystal ball sequence for diamond)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  3. ^ Sloane, N. J. A. (ed.). "Sequence A005258 (Apéry numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  4. ^ Sloane, N. J. A. (ed.). "Sequence A002808 (The composite numbers: numbers n of the form x*y for x > 1 and y > 1.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-12-29.
  5. ^ Sloane, N. J. A. (ed.). "Sequence A000217 (Triangular number: a(n) is the binomial(n+1,2) equivalent to n*(n+1)/2 that is 0 + 1 + 2 + ... + n.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-12-29.
  6. ^ Sloane, N. J. A. (ed.). "Sequence A002966 (Egyptian fractions: number of solutions of 1 = 1/x_1 + ... + 1/x_n where 0 < x_1 ≤ ... ≤ x_n)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  7. ^ Sloane, N. J. A. (ed.). "Sequence A037245 (Number of unrooted self-avoiding walks of n steps on square lattice)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  8. ^ Hill, Andrew P.; Mallinson-Howard, Sarah H.; Madigan, Daniel J.; Jowett, Gareth E. (2020). "Perfectionism in Sport, Dance, and Exercise". In Tenenbaum, Gershon; Eklund, Robert C. (eds.). Handbook of Sport Psychology (PDF) (4th ed.). Wiley. pp. 121–157. doi:10.1002/9781119568124.ch7. ISBN 978-1-119-56807-0. S2CID 150348844.
  9. ^ Rabinowitz, L. (April 1936). "Does Midrash Tillim Reflect the Triennial Cycle of Psalms?". The Jewish Quarterly Review. 26 (4): 349–368. doi:10.2307/1452095. JSTOR 1452095.
  10. ^ Yarchin, William (July 2015). "Is There an Authoritative Shape for the Hebrew Book Of Psalms? Profiling the Manuscripts of the Hebrew Psalter". Revue Biblique. 122 (3): 355–370. JSTOR 44092352.