Twenty one thousand one
21001 is an odd number.
21001 is a prime number, which means it is only divisible by 1 and itself.
In binary, 21001 is represented as 101001000001001.
In hex, 21001 is represented as 5209.
Prime factorization of 21001: 21001.
Factors of 21001 are: 1, 21001.