Twelve thousand eight hundred forty
12840 is an even number.
12840 is a Harshad number, which means it is divisible by the sum of its digits (1 + 2 + 8 + 4 + 0 = 15, and 12840 is divisible by 15).
In binary, 12840 is represented as 11001000101000.
In hex, 12840 is represented as 3228.
Prime factorization of 12840: 23 * 3 * 5 * 107.
Factors of 12840 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 2140, 2568, 3210, 4280, 6420, 12840.