Compare 639959 vs 640901
| Property | 639959 | 640901 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6399591 | 6409011 |
| Prime factorization | 639959 | 640901 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639959 | 1, 640901 |
| Number of properties | 6 | 5 |
| Additive primes | 20348th | |
| Chen primes | 20375th | 20403rd |
| Happy primes | 7411th | |
| Isolated primes | 40811th | 40866th |
| Primes | 52072nd | 52141st |
| Sexy primes (1st member) | 11298th | |
| Sophie germain primes | 5307th | 5313th |
| Roman numberals | ||
| Base 2 | 100111000011110101112 | 100111000111100001012 |
| Base 3 | 10121112120123 | 10121200110023 |
| Base 4 | 21300331134 | 21301320114 |
| Base 5 | 1304343145 | 1310021015 |
| Base 6 | 214144356 | 214230456 |
| Base 7 | 53035257 | 53063427 |
| Base 8 | 23417278 | 23436058 |
| Base 9 | 11747659 | 11761329 |
| Base 10 | 63995910 | 64090110 |
| Base 11 | 3a78a111 | 3a857811 |
| Base 12 | 26a41b12 | 26aa8512 |
| Base 13 | 19539813 | 19594113 |
| Base 14 | 12931514 | 1297c914 |
| Base 15 | c993e15 | c9d6b15 |
| Base 16 | 9c3d716 | 9c78516 |