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{{pp-pc1}}
{{Example farm|date=March 2010}}
{{Infobox number
{{Infobox number
| number = 74
| number = 74
| divisor = 1, 2, 37, 74
| divisor = 1, 2, 37, 74
}}
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'''74''' ('''seventy-four''') is the [[natural number]] following [[73 (number)|73]] and preceding [[75 (number)|75]].
'''74''' ('''seventy-four''') is the [[natural number]] following [[73 (number)|73]] and preceding [[75 (number)|75]]

A [[seventy-four (ship)|seventy-four]] was a [[third-rate]] warship with 74 guns.


==In mathematics==
==In mathematics==
'''74''' is:
74 is the twenty-first distinct [[semiprime]] and the eleventh of the form 2×''q''. The aliquot sum of '''74''' is 40 within the aliquot sequence (74,40,43,1,0) '''74''' being the sixth composite number in the 43-aliquot tree.

74 is a [[nontotient]]. There are 74 different non-Hamiltonian polyhedra with a minimum number of vertices.

==In science==
*The [[atomic number]] of [[tungsten]]

'''In [[astronomy]]''',

: [[Messier object]] [[Messier 74|M74]], a [[visual magnitude|magnitude]] 10.5 [[spiral galaxy]] in the [[constellation]] [[Pisces (constellation)|Pisces]].

: The [[New General Catalogue]] [http://www.ngcic.org/ object] [[NGC 74]], a [[galaxy]] in the constellation [[Andromeda (constellation)|Andromeda]].

:The [[Saros number|Saros]] [http://sunearth.gsfc.nasa.gov/eclipse/SEsaros/SEsaros1-175.html number] of the [[solar eclipse]] series which began on [[-615]] August 8 and ended on 719 October 18. The duration of Saros series 74 was 1334.2 years, and it contained 75 solar eclipses.

:The Saros [http://sunearth.gsfc.nasa.gov/eclipse/LEsaros/LEsaros1-175.html number] of the [[lunar eclipse]] series which began on [[-331]] May 7 and ended on 949 June 13. The duration of Saros series 74 was 1280.1 years, and it contained 72 lunar eclipses.

==In sports==
Moto GP
* [[Daijiro Kato]], former [[Moto GP]] rider who died during a crash in 2003 at the [[Suzuka Circuit]] in [[Japan]], wore number 74. During the following race, most of his colleagues wore the number on their leathers to honor their friend. Kato's teammate, [[Sete Gibernau]] has kept on using the number.

Horse racing
* [[Seventy-four (racehorse)|Seventy-four]], race horse who finished second in the [[1839 Grand National]].

Cricket
* [[Sachin Tendulkar]] scored 74 against WI at [[Mumbai]] in his 200th and final test match.

==In music==

Rock & Roll
* [http://www.74thstband.com 74th St Band]
* Piece by John Cage

==In bus routes==
In the [[Merseyside]], [[England]], '''Seventy-four''' is the bus route that runs from Halewood to [[Liverpool]] Town Centre.


* the twenty-first distinct [[semiprime]]<ref>{{Cite OEIS|sequencenumber=A001358}}</ref> and the eleventh of the form (2.''q''), where q is a higher prime.
In [[Chicago]], "74" is the Fullerton bus which runs from [[Lincoln Park]] to [[Belmont Cragin]].
* with an [[aliquot sum]] of [[40 (number)|40]], within an [[aliquot sequence]] of three composite numbers (74, [[40 (number)|40]], [[50 (number)|50]], [[43 (number)|43]], [[1 (number)|1]],0) to the Prime in the [[43 (number)|43]]-aliquot tree.
* a [[palindromic number]] in bases 6 (202<sub>6</sub>) and 36 (22<sub>36</sub>).
* a [[nontotient]].<ref>{{Cite web|url=https://oeis.org/A005277|title=Sloane's A005277 : Nontotients|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-29}}</ref>
* the number of collections of subsets of {1, 2, 3} that are closed under union and intersection.<ref>{{cite OEIS|A306445|Number of collections of subsets of {1, 2, ..., n} that are closed under union and intersection|access-date=2022-05-22}}</ref>
* φ(74) = φ(σ(74)).<ref>{{cite OEIS|A006872|Numbers k such that phi(k) = phi(sigma(k))}}</ref>


There are 74 different non-Hamiltonian polyhedra with a minimum number of vertices.<ref>{{Cite web|url=https://oeis.org/A007033|title=Sloane's A007033: Non-Hamiltonian polyhedra with n nodes.|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2020-12-11}}</ref>
==In other fields==
'''Seventy-four''' is also:
*The year AD '''74''', [[74 BC]], or 1974
*Swami [[Ramanuja]] established 74 Simhāsanādhipathis as successors in the Religious Hierarchy (Guru Parampara).
*[[George Washington's]] 74 generals in the [[Continental Army]]
*Designates the [[7400 series]] of Integrated Chips. 74xx xx=00-4538
*The designation of [[United States|USA]] [[Interstate 74]], a freeway that runs from [[Iowa]] to [[Ohio]]
*The number of sons of Levites, Jeshua, Kadmiel, Binnui, Hodaviah, in the Census of men of Israel upon return from exile ([[Holy Bible]], Ezra 2:40).
*The registry of the U.S. Navy's nuclear aircraft carrier [[USS John C. Stennis (CVN-74)]], named after U.S. Senator [[John C. Stennis]]
*Sometimes used as a substitute for [[47 (number)|47]] on ''[[Star Trek]]'' in-jokes
*A [[hurricane]] or [[typhoon]] is a system with sustained winds of at least 74 MPH
*"[[Goosebumps]]," a children's TV show based on the book series by R.L. Stine, (1995–1998) ran for 74 episodes
*Municipal Okrug #74, name of [[Georgiyevsky Municipal Okrug]] of Frunzensky District of [[Saint Petersburg]], Russia, before 2008
*The number of stars obtained by [[SpongeBob SquarePants (character)|SpongeBob SquarePants]] in his driving school
*[[Ken Jennings]], the all-time winningest champ on ''[[Jeopardy!]]'' ended his streak on the 74th show
*The number of the French department [[Haute-Savoie]]
*A [[Seventy-four (ship)|Seventy-four]] was a type of two-decked sailing [[ship of the line]] nominally carrying 74 guns.


== References ==
{{Reflist}}
{{Integers|zero}}
{{Integers|zero}}


Latest revision as of 11:25, 6 January 2025

← 73 74 75 →
Cardinalseventy-four
Ordinal74th
(seventy-fourth)
Factorization2 × 37
Divisors1, 2, 37, 74
Greek numeralΟΔ´
Roman numeralLXXIV, lxxiv
Binary10010102
Ternary22023
Senary2026
Octal1128
Duodecimal6212
Hexadecimal4A16

74 (seventy-four) is the natural number following 73 and preceding 75

In mathematics

[edit]

74 is:

  • the twenty-first distinct semiprime[1] and the eleventh of the form (2.q), where q is a higher prime.
  • with an aliquot sum of 40, within an aliquot sequence of three composite numbers (74, 40, 50, 43, 1,0) to the Prime in the 43-aliquot tree.
  • a palindromic number in bases 6 (2026) and 36 (2236).
  • a nontotient.[2]
  • the number of collections of subsets of {1, 2, 3} that are closed under union and intersection.[3]
  • φ(74) = φ(σ(74)).[4]

There are 74 different non-Hamiltonian polyhedra with a minimum number of vertices.[5]

References

[edit]
  1. ^ Sloane, N. J. A. (ed.). "Sequence A001358". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  2. ^ "Sloane's A005277 : Nontotients". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29.
  3. ^ Sloane, N. J. A. (ed.). "Sequence A306445 (Number of collections of subsets of {1, 2, ..., n} that are closed under union and intersection)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-05-22.
  4. ^ Sloane, N. J. A. (ed.). "Sequence A006872". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  5. ^ "Sloane's A007033: Non-Hamiltonian polyhedra with n nodes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2020-12-11.
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