Compare 639689 vs 639937
| Property | 639689 | 639937 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6396891 | 6399371 |
| Prime factorization | 639689 | 639937 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639689 | 1, 639937 |
| Number of properties | 4 | 6 |
| Additive primes | 20341st | 20347th |
| Chen primes | 20364th | |
| Cousin primes (1st member) | 5631st | |
| Good primes | 1986th | |
| Isolated primes | 40796th | 40808th |
| Primes | 52053rd | 52069th |
| Super primes | 5326th | |
| Roman numberals | ||
| Base 2 | 100111000010110010012 | 100111000011110000012 |
| Base 3 | 10121111110123 | 10121112111013 |
| Base 4 | 21300230214 | 21300330014 |
| Base 5 | 1304322245 | 1304342225 |
| Base 6 | 214133056 | 214144016 |
| Base 7 | 53026617 | 53034647 |
| Base 8 | 23413118 | 23417018 |
| Base 9 | 11744359 | 11747419 |
| Base 10 | 63968910 | 63993710 |
| Base 11 | 3a767611 | 3a788111 |
| Base 12 | 26a23512 | 26a40112 |
| Base 13 | 19521b13 | 19537c13 |
| Base 14 | 1291a114 | 1292db14 |
| Base 15 | c980e15 | c992715 |
| Base 16 | 9c2c916 | 9c3c116 |