Compare 640919 vs 642133
| Property | 640919 | 642133 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6409191 | 6421331 |
| Prime factorization | 640919 | 642133 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640919 | 1, 642133 |
| Number of properties | 5 | 5 |
| Additive primes | 20378th | 20413th |
| Chen primes | 20405th | |
| Isolated primes | 40868th | 40936th |
| Lucky primes | 5996th | |
| Primes | 52143rd | 52231st |
| Ulam primes | 3821st | 3829th |
| Roman numberals | ||
| Base 2 | 100111000111100101112 | 100111001100010101012 |
| Base 3 | 10121200112023 | 10121212112013 |
| Base 4 | 21301321134 | 21303011114 |
| Base 5 | 1310021345 | 1310220135 |
| Base 6 | 214231156 | 214325016 |
| Base 7 | 53063667 | 53130527 |
| Base 8 | 23436278 | 23461258 |
| Base 9 | 11761529 | 11777519 |
| Base 10 | 64091910 | 64213310 |
| Base 11 | 3a859411 | 3a949811 |
| Base 12 | 26aa9b12 | 26b73112 |
| Base 13 | 19595613 | 19637b13 |
| Base 14 | 1297dd14 | 12a02914 |
| Base 15 | c9d7e15 | ca3dd15 |
| Base 16 | 9c79716 | 9cc5516 |