Compare 639911 vs 640163
| Property | 639911 | 640163 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6399111 | 6401631 |
| Prime factorization | 639911 | 640163 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639911 | 1, 640163 |
| Number of properties | 6 | 4 |
| Additive primes | 20346th | |
| Chen primes | 20373rd | 20385th |
| Cousin primes (2nd member) | 5630th | |
| Isolated primes | 40807th | 40826th |
| Primes | 52068th | 52091st |
| Safe primes | 3018th | |
| Sophie germain primes | 5306th | |
| Roman numberals | ||
| Base 2 | 100111000011101001112 | 100111000100101000112 |
| Base 3 | 10121112101023 | 10121120102023 |
| Base 4 | 21300322134 | 21301022034 |
| Base 5 | 1304341215 | 1304411235 |
| Base 6 | 214143156 | 214154156 |
| Base 7 | 53034267 | 53042367 |
| Base 8 | 23416478 | 23422438 |
| Base 9 | 11747129 | 11751229 |
| Base 10 | 63991110 | 64016310 |
| Base 11 | 3a785811 | 3a7a6711 |
| Base 12 | 26a39b12 | 26a56b12 |
| Base 13 | 19535c13 | 1954c413 |
| Base 14 | 1292bd14 | 12941d14 |
| Base 15 | c990b15 | c9a2815 |
| Base 16 | 9c3a716 | 9c4a316 |