Compare 638993 vs 640009
| Property | 638993 | 640009 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6389931 | 6400091 |
| Prime factorization | 638993 | 640009 |
| Divisors count | 2 | 2 |
| Divisors | 1, 638993 | 1, 640009 |
| Number of properties | 4 | 6 |
| Additive primes | 20351st | |
| Chen primes | 20378th | |
| Happy primes | 7402nd | 7413th |
| Isolated primes | 40754th | |
| Lucky primes | 5978th | |
| Primes | 52001st | 52076th |
| Sexy primes (1st member) | 11268th | |
| Twin primes (2nd member) | 5632nd | |
| Roman numberals | ||
| Base 2 | 100111000000000100012 | 100111000100000010012 |
| Base 3 | 10121101121023 | 10121112210013 |
| Base 4 | 21300001014 | 21301000214 |
| Base 5 | 1304214335 | 1304400145 |
| Base 6 | 214101456 | 214150016 |
| Base 7 | 53006457 | 53036267 |
| Base 8 | 23400218 | 23420118 |
| Base 9 | 11734729 | 11748319 |
| Base 10 | 63899310 | 64000910 |
| Base 11 | 3a70a311 | 3a793711 |
| Base 12 | 26995512 | 26a46112 |
| Base 13 | 194b0413 | 19540613 |
| Base 14 | 128c2514 | 12934d14 |
| Base 15 | c94e815 | c997415 |
| Base 16 | 9c01116 | 9c40916 |