Six thousand three hundred ninety nine
6399 is an odd number.
6399 is a Harshad number, which means it is divisible by the sum of its digits (6 + 3 + 9 + 9 = 27, and 6399 is divisible by 27).
In binary, 6399 is represented as 1100011111111.
In hex, 6399 is represented as 18ff.
Prime factorization of 6399: 34 * 79.
Factors of 6399 are: 1, 3, 9, 27, 79, 81, 237, 711, 2133, 6399.