Compare 638981 vs 638993
| Property | 638981 | 638993 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 912831 | 6389931 |
| Prime factorization | 7 × 91283 | 638993 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 91283, 638981 | 1, 638993 |
| Number of properties | 1 | 4 |
| Happy primes | 7402nd | |
| Isolated primes | 40754th | |
| Primes | 52001st | |
| Semiprimes | 136923rd | |
| Sexy primes (1st member) | 11268th | |
| Roman numberals | ||
| Base 2 | 100111000000000001012 | 100111000000000100012 |
| Base 3 | 10121101112223 | 10121101121023 |
| Base 4 | 21300000114 | 21300001014 |
| Base 5 | 1304214115 | 1304214335 |
| Base 6 | 214101256 | 214101456 |
| Base 7 | 53006307 | 53006457 |
| Base 8 | 23400058 | 23400218 |
| Base 9 | 11734589 | 11734729 |
| Base 10 | 63898110 | 63899310 |
| Base 11 | 3a709211 | 3a70a311 |
| Base 12 | 26994512 | 26995512 |
| Base 13 | 194ac513 | 194b0413 |
| Base 14 | 128c1714 | 128c2514 |
| Base 15 | c94db15 | c94e815 |
| Base 16 | 9c00516 | 9c01116 |