Compare 642871 vs 642883
| Property | 642871 | 642883 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6428711 | 1931 × 33311 |
| Prime factorization | 642871 | 193 × 3331 |
| Divisors count | 2 | 4 |
| Divisors | 1, 642871 | 1, 193, 3331, 642883 |
| Number of properties | 3 | 1 |
| Primes | 52279th | |
| Semiprimes | 137750th | |
| Sexy primes (1st member) | 11325th | |
| Twin primes (2nd member) | 5655th | |
| Roman numberals | ||
| Base 2 | 100111001111001101112 | 100111001111010000112 |
| Base 3 | 10121222120013 | 10121222121113 |
| Base 4 | 21303303134 | 21303310034 |
| Base 5 | 1310324415 | 1310330135 |
| Base 6 | 214401316 | 214401516 |
| Base 7 | 53151557 | 53152037 |
| Base 8 | 23474678 | 23475038 |
| Base 9 | 11787619 | 11787749 |
| Base 10 | 64287110 | 64288310 |
| Base 11 | 3a9aa911 | 3aa00a11 |
| Base 12 | 27004712 | 27005712 |
| Base 13 | 1967c813 | 19680713 |
| Base 14 | 12a3d514 | 12a40314 |
| Base 15 | ca73115 | ca73d15 |
| Base 16 | 9cf3716 | 9cf4316 |