| ||||
---|---|---|---|---|
Cardinal | seventy | |||
Ordinal | 70th (seventieth) | |||
Factorization | 2 × 5 × 7 | |||
Divisors | 1, 2, 5, 7, 10, 14, 35, 70 | |||
Greek numeral | Ο´ | |||
Roman numeral | LXX | |||
Binary | 10001102 | |||
Ternary | 21213 | |||
Senary | 1546 | |||
Octal | 1068 | |||
Duodecimal | 5A12 | |||
Hexadecimal | 4616 | |||
Hebrew | ע | |||
Lao | ໗ | |||
Armenian | Հ | |||
Babylonian numeral | 𒐕𒌋 | |||
Egyptian hieroglyph | 𓎌 |
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 = 4900, i.e. a square pyramidal number. This is the only non trivial solution to the cannonball problem and 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, lit. '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. [8] )
78 (seventy-eight) is the natural number following 77 and preceding 79.
45 (forty-five) is the natural number following 44 and preceding 46.
76 (seventy-six) is the natural number following 75 and preceding 77.
35 (thirty-five) is the natural number following 34 and preceding 36.
86 (eighty-six) is the natural number following 85 and preceding 87.
77 (seventy-seven) is the natural number following 76 and preceding 78. Seventy-seven is the smallest positive integer requiring five syllables in English.
74 (seventy-four) is the natural number following 73 and preceding 75.
34 (thirty-four) is the natural number following 33 and preceding 35.
39 (thirty-nine) is the natural number following 38 and preceding 40.
46 (forty-six) is the natural number following 45 and preceding 47.
55 (fifty-five) is the natural number following 54 and preceding 56.
64 (sixty-four) is the natural number following 63 and preceding 65.
65 (sixty-five) is the natural number following 64 and preceding 66.
66 (sixty-six) is the natural number following 65 and preceding 67.
94 (ninety-four) is the natural number following 93 and preceding 95.
700 is the natural number following 699 and preceding 701.
800 is the natural number following 799 and preceding 801.
900 is the natural number following 899 and preceding 901. It is the square of 30 and the sum of Euler's totient function for the first 54 positive integers. In base 10 it is a Harshad number. It is also the first number to be the square of a sphenic number.
230 is the natural number following 229 and preceding 231.
70,000 is the natural number that comes after 69,999 and before 70,001. It is a round number.