Compare 640919 vs 641213
| Property | 640919 | 641213 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6409191 | 6412131 |
| Prime factorization | 640919 | 641213 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640919 | 1, 641213 |
| Number of properties | 5 | 4 |
| Additive primes | 20378th | 20388th |
| Chen primes | 20405th | |
| Isolated primes | 40868th | 40888th |
| Primes | 52143rd | 52165th |
| Sophie germain primes | 5316th | |
| Ulam primes | 3821st | |
| Roman numberals | ||
| Base 2 | 100111000111100101112 | 100111001000101111012 |
| Base 3 | 10121200112023 | 10121201201223 |
| Base 4 | 21301321134 | 21302023314 |
| Base 5 | 1310021345 | 1310043235 |
| Base 6 | 214231156 | 214243256 |
| Base 7 | 53063667 | 53102667 |
| Base 8 | 23436278 | 23442758 |
| Base 9 | 11761529 | 11765189 |
| Base 10 | 64091910 | 64121310 |
| Base 11 | 3a859411 | 3a883111 |
| Base 12 | 26aa9b12 | 26b0a512 |
| Base 13 | 19595613 | 195b2113 |
| Base 14 | 1297dd14 | 12996d14 |
| Base 15 | c9d7e15 | c9ec815 |
| Base 16 | 9c79716 | 9c8bd16 |