Compare 640231 vs 640243
| Property | 640231 | 640243 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6402311 | 191 × 311 × 10871 |
| Prime factorization | 640231 | 19 × 31 × 1087 |
| Divisors count | 2 | 8 |
| Divisors | 1, 640231 | 1, 19, 31, 589, 1087, 20653, 33697, 640243 |
| Number of properties | 2 | 0 |
| Primes | 52096th | |
| Twin primes (2nd member) | 5634th | |
| Roman numberals | ||
| Base 2 | 100111000100111001112 | 100111000100111100112 |
| Base 3 | 10121120200213 | 10121120202013 |
| Base 4 | 21301032134 | 21301033034 |
| Base 5 | 1304414115 | 1304414335 |
| Base 6 | 214200116 | 214200316 |
| Base 7 | 53043647 | 53044127 |
| Base 8 | 23423478 | 23423638 |
| Base 9 | 11752079 | 11752219 |
| Base 10 | 64023110 | 64024310 |
| Base 11 | 3a801911 | 3a802a11 |
| Base 12 | 26a60712 | 26a61712 |
| Base 13 | 19554713 | 19555613 |
| Base 14 | 12946b14 | 12947914 |
| Base 15 | c9a7115 | c9a7d15 |
| Base 16 | 9c4e716 | 9c4f316 |