Compare 638047 vs 638053
| Property | 638047 | 638053 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6380471 | 131 × 490811 |
| Prime factorization | 638047 | 13 × 49081 |
| Divisors count | 2 | 4 |
| Divisors | 1, 638047 | 1, 13, 49081, 638053 |
| Number of properties | 4 | 1 |
| Chen primes | 20324th | |
| Cousin primes (1st member) | 5618th | |
| Isolated primes | 40704th | |
| Primes | 51945th | |
| Semiprimes | 136706th | |
| Roman numberals | ||
| Base 2 | 100110111100010111112 | 100110111100011001012 |
| Base 3 | 10121020201013 | 10121020201213 |
| Base 4 | 21233011334 | 21233012114 |
| Base 5 | 1304041425 | 1304042035 |
| Base 6 | 214015316 | 214015416 |
| Base 7 | 52651247 | 52651337 |
| Base 8 | 23361378 | 23361458 |
| Base 9 | 11722119 | 11722179 |
| Base 10 | 63804710 | 63805310 |
| Base 11 | 3a641311 | 3a641911 |
| Base 12 | 2692a712 | 2692b112 |
| Base 13 | 19455713 | 19456013 |
| Base 14 | 12874b14 | 12875314 |
| Base 15 | c90b715 | c90bd15 |
| Base 16 | 9bc5f16 | 9bc6516 |