odd, composite · 445th positive integer
The number 445
445 is an odd composite number. It is the 445th positive integer.
Quick reference
| Prime factorization | 5 × 89 |
| Divisors | 1, 5, 89, 445 |
| Binary | 110111101 |
| Hexadecimal | 0x1BD |
| Roman numeral | CDXLV |
| Digit sum | 13 |
| Properties | odd, composite |
Frequently asked
Is 445 a prime number?
No. 445 is composite. Its prime factorization is 5 × 89.
What are the factors of 445?
The factors (divisors) of 445 are 1, 5, 89, 445.
What is 445 in binary?
445 in binary is 110111101. In hexadecimal it's 1BD.
What is 445 as a Roman numeral?
445 in Roman numerals is CDXLV.
What's the digit sum of 445?
Adding the digits of 445: 4 + 4 + 5 = 13.