Compare 664997 vs 665381
| Property | 664997 | 665381 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6649971 | 6653811 |
| Prime factorization | 664997 | 665381 |
| Divisors count | 2 | 2 |
| Divisors | 1, 664997 | 1, 665381 |
| Number of properties | 3 | 5 |
| Additive primes | 21056th | 21067th |
| Chen primes | 21108th | |
| Isolated primes | 42298th | 42327th |
| Primes | 53945th | 53980th |
| Sexy primes (1st member) | 11652nd | |
| Roman numberals | ||
| Base 2 | 101000100101101001012 | 101000100111001001012 |
| Base 3 | 10202100121123 | 10202102012023 |
| Base 4 | 22021122114 | 22021302114 |
| Base 5 | 1322344425 | 1322430115 |
| Base 6 | 221304056 | 221322456 |
| Base 7 | 54365247 | 54406137 |
| Base 8 | 24226458 | 24234458 |
| Base 9 | 12231759 | 12236529 |
| Base 10 | 66499710 | 66538110 |
| Base 11 | 41469311 | 414a0211 |
| Base 12 | 280a0512 | 28108512 |
| Base 13 | 1a38b813 | 1a3b2213 |
| Base 14 | 1344bb14 | 1346b314 |
| Base 15 | d208215 | d223b15 |
| Base 16 | a25a516 | a272516 |