Compare 639487 vs 640663
| Property | 639487 | 640663 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6394871 | 6406631 |
| Prime factorization | 639487 | 640663 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639487 | 1, 640663 |
| Number of properties | 7 | 6 |
| Additive primes | 20335th | |
| Cousin primes (1st member) | 5627th | 5636th |
| Good primes | 1982nd | |
| Happy primes | 7419th | |
| Isolated primes | 40783rd | 40851st |
| Primes | 52034th | 52124th |
| Prime triplets (1st member) | 2060th | 2063rd |
| Sexy primes (1st member) | 11276th | 11293rd |
| Roman numberals | ||
| Base 2 | 100111000001111111112 | 100111000110100101112 |
| Base 3 | 10121110122013 | 10121122110213 |
| Base 4 | 21300133334 | 21301221134 |
| Base 5 | 1304304225 | 1310001235 |
| Base 6 | 214123316 | 214220116 |
| Base 7 | 53022527 | 53055527 |
| Base 8 | 23407778 | 23432278 |
| Base 9 | 11741819 | 11757379 |
| Base 10 | 63948710 | 64066310 |
| Base 11 | 3a750211 | 3a838111 |
| Base 12 | 26a0a712 | 26a90712 |
| Base 13 | 1950c413 | 1957ba13 |
| Base 14 | 12909914 | 12969914 |
| Base 15 | c972715 | c9c5d15 |
| Base 16 | 9c1ff16 | 9c69716 |