even, composite · 648th positive integer
The number 648
648 is an even composite number. It is the 648th positive integer.
Quick reference
| Prime factorization | 2 × 2 × 2 × 3 × 3 × 3 × 3 |
| Divisors | 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648 |
| Binary | 1010001000 |
| Hexadecimal | 0x288 |
| Roman numeral | DCXLVIII |
| Digit sum | 18 |
| Properties | even, composite |
Frequently asked
Is 648 a prime number?
No. 648 is composite. Its prime factorization is 2 × 2 × 2 × 3 × 3 × 3 × 3.
What are the factors of 648?
The factors (divisors) of 648 are 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?
648 in binary is 1010001000. In hexadecimal it's 288.
What is 648 as a Roman numeral?
648 in Roman numerals is DCXLVIII.
What's the digit sum of 648?
Adding the digits of 648: 6 + 4 + 8 = 18.