Number 648 - properties and curiosities

648 (number)

648

Number 648 properties

  • Harshad
  • 648 is an even number.
  • 648 is a Harshad number, which means it is divisible by the sum of its digits (648 = 18, and 648 is divisible by 18).

Prime factorization

Prime factorization of 648: 2^3 × 3^4.

Divisors

Divisor count: 20

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648

Factors of 648 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648.

Representations

In octal, 648 is represented as 1210.

In binary, 648 is represented as 1010001000.

In hex, 648 is represented as 288.

Roman numeral: DCXLVIII

Curiosities

  • 648 is divisible by the sum of its digits.

Quick answers

Is 648 prime?
No, 648 is not prime.

What are the factors of 648?
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648

What is 648 in binary?
1010001000