Compare 439 vs 451
| Property | 439 | 451 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 4391 | 111 × 411 |
| Prime factorization | 439 | 11 × 41 |
| Divisors count | 2 | 4 |
| Divisors | 1, 439 | 1, 11, 41, 451 |
| Number of properties | 4 | 1 |
| Cousin primes (1st member) | 23rd | |
| Isolated primes | 40th | |
| Primes | 85th | |
| Semiprimes | 139th | |
| Sexy primes (2nd member) | 43rd | |
| Roman numberals | CDXXXIX | CDLI |
| Base 2 | 1101101112 | 1110000112 |
| Base 3 | 1210213 | 1212013 |
| Base 4 | 123134 | 130034 |
| Base 5 | 32245 | 33015 |
| Base 6 | 20116 | 20316 |
| Base 7 | 11657 | 12137 |
| Base 8 | 6678 | 7038 |
| Base 9 | 5379 | 5519 |
| Base 10 | 43910 | 45110 |
| Base 11 | 36a11 | 38011 |
| Base 12 | 30712 | 31712 |
| Base 13 | 27a13 | 28913 |
| Base 14 | 23514 | 24314 |
| Base 15 | 1e415 | 20115 |
| Base 16 | 1b716 | 1c316 |