odd, composite · 133rd positive integer
The number 133
133 is an odd composite number. It is the 133rd positive integer.
Quick reference
| Prime factorization | 7 × 19 |
| Divisors | 1, 7, 19, 133 |
| Binary | 10000101 |
| Hexadecimal | 0x85 |
| Roman numeral | CXXXIII |
| Digit sum | 7 |
| Properties | odd, composite |
Frequently asked
Is 133 a prime number?
No. 133 is composite. Its prime factorization is 7 × 19.
What are the factors of 133?
The factors (divisors) of 133 are 1, 7, 19, 133.
What is 133 in binary?
133 in binary is 10000101. In hexadecimal it's 85.
What is 133 as a Roman numeral?
133 in Roman numerals is CXXXIII.
What's the digit sum of 133?
Adding the digits of 133: 1 + 3 + 3 = 7.