Compare 640919 vs 640922
| Property | 640919 | 640922 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6409191 | 21 × 671 × 47831 |
| Prime factorization | 640919 | 2 × 67 × 4783 |
| Divisors count | 2 | 8 |
| Divisors | 1, 640919 | 1, 2, 67, 134, 4783, 9566, 320461, 640922 |
| Number of properties | 5 | 0 |
| Additive primes | 20378th | |
| Chen primes | 20405th | |
| Isolated primes | 40868th | |
| Primes | 52143rd | |
| Ulam primes | 3821st | |
| Roman numberals | ||
| Base 2 | 100111000111100101112 | 100111000111100110102 |
| Base 3 | 10121200112023 | 10121200112123 |
| Base 4 | 21301321134 | 21301321224 |
| Base 5 | 1310021345 | 1310021425 |
| Base 6 | 214231156 | 214231226 |
| Base 7 | 53063667 | 53064027 |
| Base 8 | 23436278 | 23436328 |
| Base 9 | 11761529 | 11761559 |
| Base 10 | 64091910 | 64092210 |
| Base 11 | 3a859411 | 3a859711 |
| Base 12 | 26aa9b12 | 26aaa212 |
| Base 13 | 19595613 | 19595913 |
| Base 14 | 1297dd14 | 12980214 |
| Base 15 | c9d7e15 | c9d8215 |
| Base 16 | 9c79716 | 9c79a16 |