odd, composite, palindrome · 393rd positive integer
The number 393
393 is an odd composite number. It is the 393rd positive integer.
Quick reference
| Prime factorization | 3 × 131 |
| Divisors | 1, 3, 131, 393 |
| Binary | 110001001 |
| Hexadecimal | 0x189 |
| Roman numeral | CCCXCIII |
| Digit sum | 15 |
| Properties | odd, composite, palindrome |
Frequently asked
Is 393 a prime number?
No. 393 is composite. Its prime factorization is 3 × 131.
What are the factors of 393?
The factors (divisors) of 393 are 1, 3, 131, 393.
What is 393 in binary?
393 in binary is 110001001. In hexadecimal it's 189.
What is 393 as a Roman numeral?
393 in Roman numerals is CCCXCIII.
What's the digit sum of 393?
Adding the digits of 393: 3 + 9 + 3 = 15.