Six hundred forty eight
648 is an even number.
648 is a Harshad number, which means it is divisible by the sum of its digits (6 + 4 + 8 = 18, and 648 is divisible by 18).
In binary, 648 is represented as 1010001000.
In hex, 648 is represented as 288.
Prime factorization of 648: 23 * 34.
Factors of 648 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648.