Compare 640837 vs 641129
| Property | 640837 | 641129 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6408371 | 6411291 |
| Prime factorization | 640837 | 641129 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640837 | 1, 641129 |
| Number of properties | 3 | 5 |
| Additive primes | 20386th | |
| Chen primes | 20401st | 20408th |
| Happy primes | 7422nd | |
| Isolated primes | 40860th | |
| Primes | 52135th | 52159th |
| Twin primes (1st member) | 5639th | |
| Roman numberals | ||
| Base 2 | 100111000111010001012 | 100111001000011010012 |
| Base 3 | 10121200012013 | 10121201101123 |
| Base 4 | 21301310114 | 21302012214 |
| Base 5 | 1310013225 | 1310040045 |
| Base 6 | 214225016 | 214241056 |
| Base 7 | 53062217 | 53101167 |
| Base 8 | 23435058 | 23441518 |
| Base 9 | 11760519 | 11764159 |
| Base 10 | 64083710 | 64112910 |
| Base 11 | 3a851a11 | 3a876511 |
| Base 12 | 26aa3112 | 26b03512 |
| Base 13 | 1958c213 | 195a8813 |
| Base 14 | 12978114 | 12990d14 |
| Base 15 | c9d2715 | c9e6e15 |
| Base 16 | 9c74516 | 9c86916 |