odd, composite, perfect square · 169th positive integer
The number 169
169 is an odd composite number. It is the 169th positive integer.
Quick reference
| Prime factorization | 13 × 13 |
| Divisors | 1, 13, 169 |
| Binary | 10101001 |
| Hexadecimal | 0xA9 |
| Roman numeral | CLXIX |
| Digit sum | 16 |
| Properties | odd, composite, perfect square |
Frequently asked
Is 169 a prime number?
No. 169 is composite. Its prime factorization is 13 × 13.
What are the factors of 169?
The factors (divisors) of 169 are 1, 13, 169.
What is 169 in binary?
169 in binary is 10101001. In hexadecimal it's A9.
What is 169 as a Roman numeral?
169 in Roman numerals is CLXIX.
What's the digit sum of 169?
Adding the digits of 169: 1 + 6 + 9 = 16.