Compare 640901 vs 641513
| Property | 640901 | 641513 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6409011 | 6415131 |
| Prime factorization | 640901 | 641513 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640901 | 1, 641513 |
| Number of properties | 5 | 4 |
| Chen primes | 20403rd | |
| Isolated primes | 40866th | 40907th |
| Primes | 52141st | 52186th |
| Sexy primes (1st member) | 11298th | 11307th |
| Sophie germain primes | 5313th | 5319th |
| Roman numberals | ||
| Base 2 | 100111000111100001012 | 100111001001111010012 |
| Base 3 | 10121200110023 | 10121202222023 |
| Base 4 | 21301320114 | 21302132214 |
| Base 5 | 1310021015 | 1310120235 |
| Base 6 | 214230456 | 214255456 |
| Base 7 | 53063427 | 53112057 |
| Base 8 | 23436058 | 23447518 |
| Base 9 | 11761329 | 11768829 |
| Base 10 | 64090110 | 64151310 |
| Base 11 | 3a857811 | 3a8a8411 |
| Base 12 | 26aa8512 | 26b2b512 |
| Base 13 | 19594113 | 195cc213 |
| Base 14 | 1297c914 | 129b0514 |
| Base 15 | c9d6b15 | ca12815 |
| Base 16 | 9c78516 | 9c9e916 |