Seventy two
72 is an even number.
72 is a Harshad number, which means it is divisible by the sum of its digits (7 + 2 = 9, and 72 is divisible by 9).
In binary, 72 is represented as 1001000.
In hex, 72 is represented as 48.
Prime factorization of 72: 23 * 32.
Factors of 72 are: 1, 2, 3, 4, 6, 8, 8, 9, 12, 18, 24, 36, 72.