Compare 640043 vs 640223
| Property | 640043 | 640223 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6400431 | 6402231 |
| Prime factorization | 640043 | 640223 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640043 | 1, 640223 |
| Number of properties | 5 | 5 |
| Additive primes | 20353rd | 20360th |
| Cousin primes (2nd member) | 5632nd | 5633rd |
| Isolated primes | 40817th | 40829th |
| Primes | 52080th | 52094th |
| Sexy primes (1st member) | 11285th | 11287th |
| Roman numberals | ||
| Base 2 | 100111000100001010112 | 100111000100110111112 |
| Base 3 | 10121112220223 | 10121120122223 |
| Base 4 | 21301002234 | 21301031334 |
| Base 5 | 1304401335 | 1304413435 |
| Base 6 | 214150556 | 214155556 |
| Base 7 | 53040057 | 53043537 |
| Base 8 | 23420538 | 23423378 |
| Base 9 | 11748689 | 11751889 |
| Base 10 | 64004310 | 64022310 |
| Base 11 | 3a796811 | 3a801111 |
| Base 12 | 26a48b12 | 26a5bb12 |
| Base 13 | 19543113 | 19553c13 |
| Base 14 | 12937514 | 12946314 |
| Base 15 | c999815 | c9a6815 |
| Base 16 | 9c42b16 | 9c4df16 |