Compare 639907 vs 642769
| Property | 639907 | 642769 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6399071 | 6427691 |
| Prime factorization | 639907 | 642769 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639907 | 1, 642769 |
| Number of properties | 5 | 3 |
| Cousin primes (1st member) | 5630th | |
| Good primes | 1985th | 1989th |
| Isolated primes | 40806th | 40965th |
| Primes | 52067th | 52270th |
| Super primes | 5325th | |
| Roman numberals | ||
| Base 2 | 100111000011101000112 | 100111001110110100012 |
| Base 3 | 10121112100213 | 10121222010213 |
| Base 4 | 21300322034 | 21303231014 |
| Base 5 | 1304341125 | 1310320345 |
| Base 6 | 214143116 | 214354416 |
| Base 7 | 53034227 | 53146517 |
| Base 8 | 23416438 | 23473218 |
| Base 9 | 11747079 | 11786379 |
| Base 10 | 63990710 | 64276910 |
| Base 11 | 3a785411 | 3a9a1611 |
| Base 12 | 26a39712 | 26bb8112 |
| Base 13 | 19535813 | 19674a13 |
| Base 14 | 1292b914 | 12a36114 |
| Base 15 | c990715 | ca6b415 |
| Base 16 | 9c3a316 | 9ced116 |