39 (number): Difference between revisions
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[[Category:Integers]] [[Category:Composite numbers]] |
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'''39''' is the [[natural number]] following [[thirty-eight|38]] and preceding [[forty|40]]. |
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<table border=1 style="float: right; border-collapse: collapse;"> |
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<tr><td colspan=2>{{numbers_30s}} |
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<tr><td>[[Cardinal number|Cardinal]] <td>thirty-nine |
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<tr><td>[[Ordinal number|Ordinal]]<td>39th (thirty-ninth) |
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<tr><td>[[Factorization]]<td><math>3\cdot 13</math> |
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<tr><td>[[Roman numeral]]<td>XXXIX |
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<tr><td>[[Binary numeral system|Binary]]<td>100111 |
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<tr><td>[[Hexadecimal]]<td>27 |
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</table> |
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== In mathematics == |
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'''Thirty-nine''' is the sum of five consecutive primes (3 + 5 + 7 + 11 + 13) and the sum of the first three powers of [[3 (number)|3]] (<math>3^1 + 3^2 + 3^3</math>). Given 39, the [[Mertens function]] returns [[zero|0]]. |
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[[Category:Integers]] [[Category:Composite numbers]] |
[[Category:Integers]] [[Category:Composite numbers]] |
||
'''39''' is the [[natural number]] following [[thirty-eight|38]] and preceding [[forty|40]]. |
'''39''' is the [[natural number]] following [[thirty-eight|38]] and preceding [[forty|40]]. |
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Revision as of 22:15, 28 November 2004
39 is the natural number following 38 and preceding 40.
| Template:Numbers 30s | |
| Cardinal | thirty-nine |
| Ordinal | 39th (thirty-ninth) |
| Factorization | |
| Roman numeral | XXXIX |
| Binary | 100111 |
| Hexadecimal | 27 |
In mathematics
Thirty-nine is the sum of five consecutive primes (3 + 5 + 7 + 11 + 13) and the sum of the first three powers of 3 (). Given 39, the Mertens function returns 0. 39 is the natural number following 38 and preceding 40.
| Template:Numbers 30s | |
| Cardinal | thirty-nine |
| Ordinal | 39th (thirty-ninth) |
| Factorization | |
| Roman numeral | XXXIX |
| Binary | 100111 |
| Hexadecimal | 27 |
In mathematics
Thirty-nine is the sum of five consecutive primes (3 + 5 + 7 + 11 + 13) and the sum of the first three powers of 3 (). Given 39, the Mertens function returns 0.
In other fields
Thirty-nine is also:
- The atomic number of yttrium.
- In the title of the John Buchan, novel The Thirty-Nine Steps.
- The code for international direct-dialed phone calls to Italy.
- I-39 is the designation for a US interstate highway from Normal, Illinois to Wausau, Wisconsin.
- The eternal age of comedian Jack Benny, and many other people as they grow older.
- The traditional number of times citizens of Ancient Rome hit their slaves when beating them, referred to as "Forty save one."
- The year A.D. 39, 39 BC, or 1939.
- Japanese Internet chat slang for "thank you" when written with numbers.