Compare 640139 vs 640163
| Property | 640139 | 640163 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6401391 | 6401631 |
| Prime factorization | 640139 | 640163 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640139 | 1, 640163 |
| Number of properties | 4 | 4 |
| Additive primes | 20356th | |
| Chen primes | 20383rd | 20385th |
| Isolated primes | 40825th | 40826th |
| Primes | 52088th | 52091st |
| Safe primes | 3018th | |
| Roman numberals | ||
| Base 2 | 100111000100100010112 | 100111000100101000112 |
| Base 3 | 10121120022123 | 10121120102023 |
| Base 4 | 21301020234 | 21301022034 |
| Base 5 | 1304410245 | 1304411235 |
| Base 6 | 214153356 | 214154156 |
| Base 7 | 53042037 | 53042367 |
| Base 8 | 23422138 | 23422438 |
| Base 9 | 11750859 | 11751229 |
| Base 10 | 64013910 | 64016310 |
| Base 11 | 3a7a4511 | 3a7a6711 |
| Base 12 | 26a54b12 | 26a56b12 |
| Base 13 | 1954a613 | 1954c413 |
| Base 14 | 12940314 | 12941d14 |
| Base 15 | c9a0e15 | c9a2815 |
| Base 16 | 9c48b16 | 9c4a316 |