Compare 439 vs 447
| Property | 439 | 447 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 4391 | 31 × 1491 |
| Prime factorization | 439 | 3 × 149 |
| Divisors count | 2 | 4 |
| Divisors | 1, 439 | 1, 3, 149, 447 |
| Number of properties | 4 | 1 |
| Cousin primes (1st member) | 23rd | |
| Isolated primes | 40th | |
| Primes | 85th | |
| Semiprimes | 138th | |
| Sexy primes (2nd member) | 43rd | |
| Roman numberals | CDXXXIX | CDXLVII |
| Base 2 | 1101101112 | 1101111112 |
| Base 3 | 1210213 | 1211203 |
| Base 4 | 123134 | 123334 |
| Base 5 | 32245 | 32425 |
| Base 6 | 20116 | 20236 |
| Base 7 | 11657 | 12067 |
| Base 8 | 6678 | 6778 |
| Base 9 | 5379 | 5469 |
| Base 10 | 43910 | 44710 |
| Base 11 | 36a11 | 37711 |
| Base 12 | 30712 | 31312 |
| Base 13 | 27a13 | 28513 |
| Base 14 | 23514 | 23d14 |
| Base 15 | 1e415 | 1ec15 |
| Base 16 | 1b716 | 1bf16 |