Compare 638039 vs 638047
| Property | 638039 | 638047 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 191 × 335811 | 6380471 |
| Prime factorization | 19 × 33581 | 638047 |
| Divisors count | 4 | 2 |
| Divisors | 1, 19, 33581, 638039 | 1, 638047 |
| Number of properties | 1 | 4 |
| Chen primes | 20324th | |
| Cousin primes (1st member) | 5618th | |
| Isolated primes | 40704th | |
| Primes | 51945th | |
| Semiprimes | 136703rd | |
| Roman numberals | ||
| Base 2 | 100110111100010101112 | 100110111100010111112 |
| Base 3 | 10121020200023 | 10121020201013 |
| Base 4 | 21233011134 | 21233011334 |
| Base 5 | 1304041245 | 1304041425 |
| Base 6 | 214015156 | 214015316 |
| Base 7 | 52651137 | 52651247 |
| Base 8 | 23361278 | 23361378 |
| Base 9 | 11722029 | 11722119 |
| Base 10 | 63803910 | 63804710 |
| Base 11 | 3a640611 | 3a641311 |
| Base 12 | 26929b12 | 2692a712 |
| Base 13 | 19454c13 | 19455713 |
| Base 14 | 12874314 | 12874b14 |
| Base 15 | c90ae15 | c90b715 |
| Base 16 | 9bc5716 | 9bc5f16 |