Compare 639983 vs 640663
| Property | 639983 | 640663 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6399831 | 6406631 |
| Prime factorization | 639983 | 640663 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639983 | 1, 640663 |
| Number of properties | 4 | 6 |
| Chen primes | 20376th | |
| Cousin primes (1st member) | 5636th | |
| Happy primes | 7412th | 7419th |
| Isolated primes | 40812th | 40851st |
| Primes | 52073rd | 52124th |
| Prime triplets (1st member) | 2063rd | |
| Sexy primes (1st member) | 11293rd | |
| Roman numberals | ||
| Base 2 | 100111000011111011112 | 100111000110100101112 |
| Base 3 | 10121112200023 | 10121122110213 |
| Base 4 | 21300332334 | 21301221134 |
| Base 5 | 1304344135 | 1310001235 |
| Base 6 | 214145156 | 214220116 |
| Base 7 | 53035617 | 53055527 |
| Base 8 | 23417578 | 23432278 |
| Base 9 | 11748029 | 11757379 |
| Base 10 | 63998310 | 64066310 |
| Base 11 | 3a791311 | 3a838111 |
| Base 12 | 26a43b12 | 26a90712 |
| Base 13 | 1953b613 | 1957ba13 |
| Base 14 | 12933114 | 12969914 |
| Base 15 | c995815 | c9c5d15 |
| Base 16 | 9c3ef16 | 9c69716 |