Compare 638971 vs 638983
| Property | 638971 | 638983 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6389711 | 1391 × 45971 |
| Prime factorization | 638971 | 139 × 4597 |
| Divisors count | 2 | 4 |
| Divisors | 1, 638971 | 1, 139, 4597, 638983 |
| Number of properties | 4 | 1 |
| Isolated primes | 40752nd | |
| Primes | 51999th | |
| Semiprimes | 136924th | |
| Sexy primes (1st member) | 11267th | |
| Ulam primes | 3811th | |
| Roman numberals | ||
| Base 2 | 100110111111111110112 | 100111000000000001112 |
| Base 3 | 10121101111213 | 10121101120013 |
| Base 4 | 21233333234 | 21300000134 |
| Base 5 | 1304213415 | 1304214135 |
| Base 6 | 214101116 | 214101316 |
| Base 7 | 53006147 | 53006327 |
| Base 8 | 23377738 | 23400078 |
| Base 9 | 11734479 | 11734619 |
| Base 10 | 63897110 | 63898310 |
| Base 11 | 3a708311 | 3a709411 |
| Base 12 | 26993712 | 26994712 |
| Base 13 | 194ab813 | 194ac713 |
| Base 14 | 128c0b14 | 128c1914 |
| Base 15 | c94d115 | c94dd15 |
| Base 16 | 9bffb16 | 9c00716 |