Compare 639937 vs 640069
| Property | 639937 | 640069 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6399371 | 6400691 |
| Prime factorization | 639937 | 640069 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639937 | 1, 640069 |
| Number of properties | 6 | 2 |
| Additive primes | 20347th | |
| Cousin primes (1st member) | 5631st | |
| Good primes | 1986th | |
| Isolated primes | 40808th | 40820th |
| Primes | 52069th | 52083rd |
| Super primes | 5326th | |
| Roman numberals | ||
| Base 2 | 100111000011110000012 | 100111000100010001012 |
| Base 3 | 10121112111013 | 10121120000213 |
| Base 4 | 21300330014 | 21301010114 |
| Base 5 | 1304342225 | 1304402345 |
| Base 6 | 214144016 | 214151416 |
| Base 7 | 53034647 | 53040437 |
| Base 8 | 23417018 | 23421058 |
| Base 9 | 11747419 | 11750079 |
| Base 10 | 63993710 | 64006910 |
| Base 11 | 3a788111 | 3a799111 |
| Base 12 | 26a40112 | 26a4b112 |
| Base 13 | 19537c13 | 19545113 |
| Base 14 | 1292db14 | 12939314 |
| Base 15 | c992715 | c99b415 |
| Base 16 | 9c3c116 | 9c44516 |