Compare 639739 vs 640009
| Property | 639739 | 640009 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6397391 | 6400091 |
| Prime factorization | 639739 | 640009 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639739 | 1, 640009 |
| Number of properties | 4 | 6 |
| Additive primes | 20344th | 20351st |
| Chen primes | 20368th | 20378th |
| Happy primes | 7413th | |
| Isolated primes | 40801st | |
| Lucky primes | 5978th | |
| Primes | 52060th | 52076th |
| Twin primes (2nd member) | 5632nd | |
| Roman numberals | ||
| Base 2 | 100111000010111110112 | 100111000100000010012 |
| Base 3 | 10121111200013 | 10121112210013 |
| Base 4 | 21300233234 | 21301000214 |
| Base 5 | 1304324245 | 1304400145 |
| Base 6 | 214134316 | 214150016 |
| Base 7 | 53030627 | 53036267 |
| Base 8 | 23413738 | 23420118 |
| Base 9 | 11745019 | 11748319 |
| Base 10 | 63973910 | 64000910 |
| Base 11 | 3a771111 | 3a793711 |
| Base 12 | 26a27712 | 26a46112 |
| Base 13 | 19525913 | 19540613 |
| Base 14 | 1291d914 | 12934d14 |
| Base 15 | c984415 | c997415 |
| Base 16 | 9c2fb16 | 9c40916 |