odd, composite, triangular · 351st positive integer
The number 351
351 is an odd composite number. It is the 351st positive integer.
Quick reference
| Prime factorization | 3 × 3 × 3 × 13 |
| Divisors | 1, 3, 9, 13, 27, 39, 117, 351 |
| Binary | 101011111 |
| Hexadecimal | 0x15F |
| Roman numeral | CCCLI |
| Digit sum | 9 |
| Properties | odd, composite, triangular |
Frequently asked
Is 351 a prime number?
No. 351 is composite. Its prime factorization is 3 × 3 × 3 × 13.
What are the factors of 351?
The factors (divisors) of 351 are 1, 3, 9, 13, 27, 39, 117, 351.
What is 351 in binary?
351 in binary is 101011111. In hexadecimal it's 15F.
What is 351 as a Roman numeral?
351 in Roman numerals is CCCLI.
What's the digit sum of 351?
Adding the digits of 351: 3 + 5 + 1 = 9.