odd, composite, palindrome · 33rd positive integer
The number 33
33 is an odd composite number. It is the 33rd positive integer.
Quick reference
| Prime factorization | 3 × 11 |
| Divisors | 1, 3, 11, 33 |
| Binary | 100001 |
| Hexadecimal | 0x21 |
| Roman numeral | XXXIII |
| Digit sum | 6 |
| Properties | odd, composite, palindrome |
Frequently asked
Is 33 a prime number?
No. 33 is composite. Its prime factorization is 3 × 11.
What are the factors of 33?
The factors (divisors) of 33 are 1, 3, 11, 33.
What is 33 in binary?
33 in binary is 100001. In hexadecimal it's 21.
What is 33 as a Roman numeral?
33 in Roman numerals is XXXIII.
What's the digit sum of 33?
Adding the digits of 33: 3 + 3 = 6.