odd, composite · 245th positive integer
The number 245
245 is an odd composite number. It is the 245th positive integer.
Quick reference
| Prime factorization | 5 × 7 × 7 |
| Divisors | 1, 5, 7, 35, 49, 245 |
| Binary | 11110101 |
| Hexadecimal | 0xF5 |
| Roman numeral | CCXLV |
| Digit sum | 11 |
| Properties | odd, composite |
Frequently asked
Is 245 a prime number?
No. 245 is composite. Its prime factorization is 5 × 7 × 7.
What are the factors of 245?
The factors (divisors) of 245 are 1, 5, 7, 35, 49, 245.
What is 245 in binary?
245 in binary is 11110101. In hexadecimal it's F5.
What is 245 as a Roman numeral?
245 in Roman numerals is CCXLV.
What's the digit sum of 245?
Adding the digits of 245: 2 + 4 + 5 = 11.