Compare 639257 vs 640529
| Property | 639257 | 640529 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6392571 | 6405291 |
| Prime factorization | 639257 | 640529 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639257 | 1, 640529 |
| Number of properties | 10 | 3 |
| Chen primes | 20353rd | 20393rd |
| Cousin primes (2nd member) | 5624th | |
| Good primes | 1980th | |
| Primes | 52019th | 52115th |
| Prime triplets (1st member) | 2059th | |
| Prime triplets (2nd member) | 2058th | |
| Sexy primes (1st member) | 11273rd | |
| Sexy prime triplets (1st member) | 2071st | |
| Twin primes (1st member) | 5626th | 5637th |
| Ulam primes | 3812th | |
| Roman numberals | ||
| Base 2 | 100111000001000110012 | 100111000110000100012 |
| Base 3 | 10121102200123 | 10121121220223 |
| Base 4 | 21300101214 | 21301201014 |
| Base 5 | 1304240125 | 1304441045 |
| Base 6 | 214113056 | 214212256 |
| Base 7 | 53015037 | 53053017 |
| Base 8 | 23404318 | 23430218 |
| Base 9 | 11738059 | 11755689 |
| Base 10 | 63925710 | 64052910 |
| Base 11 | 3a731311 | 3a826a11 |
| Base 12 | 269b3512 | 26a81512 |
| Base 13 | 194c7813 | 19571613 |
| Base 14 | 128d7314 | 12960114 |
| Base 15 | c962215 | c9bbe15 |
| Base 16 | 9c11916 | 9c61116 |