Compare 638993 vs 638997
| Property | 638993 | 638997 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6389931 | 31 × 2129991 |
| Prime factorization | 638993 | 3 × 212999 |
| Divisors count | 2 | 4 |
| Divisors | 1, 638993 | 1, 3, 212999, 638997 |
| Number of properties | 4 | 1 |
| Happy primes | 7402nd | |
| Isolated primes | 40754th | |
| Primes | 52001st | |
| Semiprimes | 136926th | |
| Sexy primes (1st member) | 11268th | |
| Roman numberals | ||
| Base 2 | 100111000000000100012 | 100111000000000101012 |
| Base 3 | 10121101121023 | 10121101121203 |
| Base 4 | 21300001014 | 21300001114 |
| Base 5 | 1304214335 | 1304214425 |
| Base 6 | 214101456 | 214101536 |
| Base 7 | 53006457 | 53006527 |
| Base 8 | 23400218 | 23400258 |
| Base 9 | 11734729 | 11734769 |
| Base 10 | 63899310 | 63899710 |
| Base 11 | 3a70a311 | 3a70a711 |
| Base 12 | 26995512 | 26995912 |
| Base 13 | 194b0413 | 194b0813 |
| Base 14 | 128c2514 | 128c2914 |
| Base 15 | c94e815 | c94ec15 |
| Base 16 | 9c01116 | 9c01516 |