Compare 640631 vs 641549
| Property | 640631 | 641549 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6406311 | 6415491 |
| Prime factorization | 640631 | 641549 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640631 | 1, 641549 |
| Number of properties | 3 | 6 |
| Additive primes | 20399th | |
| Chen primes | 20418th | |
| Isolated primes | 40849th | |
| Primes | 52122nd | 52189th |
| Sophie germain primes | 5310th | 5320th |
| Super primes | 5337th | |
| Twin primes (1st member) | 5642nd | |
| Roman numberals | ||
| Base 2 | 100111000110011101112 | 100111001010000011012 |
| Base 3 | 10121122100023 | 10121210010023 |
| Base 4 | 21301213134 | 21302200314 |
| Base 5 | 1310000115 | 1310121445 |
| Base 6 | 214215156 | 214300456 |
| Base 7 | 53055057 | 53112567 |
| Base 8 | 23431678 | 23450158 |
| Base 9 | 11757029 | 11770329 |
| Base 10 | 64063110 | 64154910 |
| Base 11 | 3a835211 | 3a900711 |
| Base 12 | 26a89b12 | 26b32512 |
| Base 13 | 19579413 | 19601c13 |
| Base 14 | 12967514 | 129b2d14 |
| Base 15 | c9c3b15 | ca14e15 |
| Base 16 | 9c67716 | 9ca0d16 |