Seventy
70 is an even number.
70 is a Harshad number, which means it is divisible by the sum of its digits (7 + 0 = 7, and 70 is divisible by 7).
In binary, 70 is represented as 1000110.
In hex, 70 is represented as 46.
Prime factorization of 70: 2 * 5 * 7.