Three thousand nine hundred ninety
3990 is an even number.
3990 is a Harshad number, which means it is divisible by the sum of its digits (3 + 9 + 9 + 0 = 21, and 3990 is divisible by 21).
In binary, 3990 is represented as 111110010110.
In hex, 3990 is represented as f96.
Prime factorization of 3990: 2 * 3 * 5 * 7 * 19.
Factors of 3990 are: 1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990.