Compare 639911 vs 640153
| Property | 639911 | 640153 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6399111 | 6401531 |
| Prime factorization | 639911 | 640153 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639911 | 1, 640153 |
| Number of properties | 6 | 3 |
| Additive primes | 20346th | 20358th |
| Chen primes | 20373rd | |
| Cousin primes (2nd member) | 5630th | |
| Isolated primes | 40807th | |
| Primes | 52068th | 52090th |
| Sophie germain primes | 5306th | |
| Twin primes (2nd member) | 5633rd | |
| Roman numberals | ||
| Base 2 | 100111000011101001112 | 100111000100100110012 |
| Base 3 | 10121112101023 | 10121120101013 |
| Base 4 | 21300322134 | 21301021214 |
| Base 5 | 1304341215 | 1304411035 |
| Base 6 | 214143156 | 214154016 |
| Base 7 | 53034267 | 53042237 |
| Base 8 | 23416478 | 23422318 |
| Base 9 | 11747129 | 11751119 |
| Base 10 | 63991110 | 64015310 |
| Base 11 | 3a785811 | 3a7a5811 |
| Base 12 | 26a39b12 | 26a56112 |
| Base 13 | 19535c13 | 1954b713 |
| Base 14 | 1292bd14 | 12941314 |
| Base 15 | c990b15 | c9a1d15 |
| Base 16 | 9c3a716 | 9c49916 |