Compare 427 vs 439
| Property | 427 | 439 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 611 | 4391 |
| Prime factorization | 7 × 61 | 439 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 61, 427 | 1, 439 |
| Number of properties | 1 | 4 |
| Cousin primes (1st member) | 23rd | |
| Isolated primes | 40th | |
| Primes | 85th | |
| Semiprimes | 134th | |
| Sexy primes (2nd member) | 43rd | |
| Roman numberals | CDXXVII | CDXXXIX |
| Base 2 | 1101010112 | 1101101112 |
| Base 3 | 1202113 | 1210213 |
| Base 4 | 122234 | 123134 |
| Base 5 | 32025 | 32245 |
| Base 6 | 15516 | 20116 |
| Base 7 | 11507 | 11657 |
| Base 8 | 6538 | 6678 |
| Base 9 | 5249 | 5379 |
| Base 10 | 42710 | 43910 |
| Base 11 | 35911 | 36a11 |
| Base 12 | 2b712 | 30712 |
| Base 13 | 26b13 | 27a13 |
| Base 14 | 22714 | 23514 |
| Base 15 | 1d715 | 1e415 |
| Base 16 | 1ab16 | 1b716 |