even, composite · 728th positive integer
The number 728
728 is an even composite number. It is the 728th positive integer.
Quick reference
| Prime factorization | 2 × 2 × 2 × 7 × 13 |
| Divisors | 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728 |
| Binary | 1011011000 |
| Hexadecimal | 0x2D8 |
| Roman numeral | DCCXXVIII |
| Digit sum | 17 |
| Properties | even, composite |
Frequently asked
Is 728 a prime number?
No. 728 is composite. Its prime factorization is 2 × 2 × 2 × 7 × 13.
What are the factors of 728?
The factors (divisors) of 728 are 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728.
What is 728 in binary?
728 in binary is 1011011000. In hexadecimal it's 2D8.
What is 728 as a Roman numeral?
728 in Roman numerals is DCCXXVIII.
What's the digit sum of 728?
Adding the digits of 728: 7 + 2 + 8 = 17.