odd, composite · 65th positive integer
The number 65
65 is an odd composite number. It is the 65th positive integer.
Quick reference
| Prime factorization | 5 × 13 |
| Divisors | 1, 5, 13, 65 |
| Binary | 1000001 |
| Hexadecimal | 0x41 |
| Roman numeral | LXV |
| Digit sum | 11 |
| Properties | odd, composite |
Frequently asked
Is 65 a prime number?
No. 65 is composite. Its prime factorization is 5 × 13.
What are the factors of 65?
The factors (divisors) of 65 are 1, 5, 13, 65.
What is 65 in binary?
65 in binary is 1000001. In hexadecimal it's 41.
What is 65 as a Roman numeral?
65 in Roman numerals is LXV.
What's the digit sum of 65?
Adding the digits of 65: 6 + 5 = 11.