Twelve

12 is an even number.

12 is a Harshad number, which means it is divisible by the sum of its digits (1 + 2 = 3, and 12 is divisible by 3).

In binary, 12 is represented as 1100.

In hex, 12 is represented as c.

Prime factorization of 12: 2^{2} * 3.