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Cardinal | seventy | |||
Ordinal | 70th (seventieth) |
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Factorization | 2 × 5 × 7 | |||
Divisors | 1, 2, 5, 7, 10, 14, 35, 70 | |||
Roman numeral | LXX | |||
Binary | 10001102 | |||
Ternary | 21213 | |||
Quaternary | 10124 | |||
Quinary | 2405 | |||
Senary | 1546 | |||
Octal | 1068 | |||
Duodecimal | 5A12 | |||
Hexadecimal | 4616 | |||
Vigesimal | 3A20 | |||
Base 36 | 1Y36 | |||
Hebrew | ע (Ayin) |
70 (seventy) is the natural number following 69 and preceding 71.
70 is:
The sum of the first 24 squares starting from 1 is 702. This relates 70 to the Leech lattice and thus string theory.
Several languages, especially ones with vigesimal number systems, do not have a specific word for 70: for example, French soixante-dix "sixty-ten"; Danish halvfjerds, short for halvfjerdsindstyve "three and a half score". (For French, this is true only in France; other French-speaking regions such as Belgium, Switzerland, Aosta Valley and Jersey use septante.)