Compare 640223 vs 640227
| Property | 640223 | 640227 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 4 |
| Prime factorization | 6402231 | 31 × 71 × 431 × 7091 |
| Prime factorization | 640223 | 3 × 7 × 43 × 709 |
| Divisors count | 2 | 16 |
| Divisors | 1, 640223 | 1, 3, 7, 21, 43, 129, 301, 709, 903, 2127, 4963, 14889, 30487, 91461, 213409, 640227 |
| Number of properties | 5 | 0 |
| Additive primes | 20360th | |
| Cousin primes (2nd member) | 5633rd | |
| Isolated primes | 40829th | |
| Primes | 52094th | |
| Sexy primes (1st member) | 11287th | |
| Roman numberals | ||
| Base 2 | 100111000100110111112 | 100111000100111000112 |
| Base 3 | 10121120122223 | 10121120200103 |
| Base 4 | 21301031334 | 21301032034 |
| Base 5 | 1304413435 | 1304414025 |
| Base 6 | 214155556 | 214200036 |
| Base 7 | 53043537 | 53043607 |
| Base 8 | 23423378 | 23423438 |
| Base 9 | 11751889 | 11752039 |
| Base 10 | 64022310 | 64022710 |
| Base 11 | 3a801111 | 3a801511 |
| Base 12 | 26a5bb12 | 26a60312 |
| Base 13 | 19553c13 | 19554313 |
| Base 14 | 12946314 | 12946714 |
| Base 15 | c9a6815 | c9a6c15 |
| Base 16 | 9c4df16 | 9c4e316 |