Compare 664949 vs 665381
| Property | 664949 | 665381 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6649491 | 6653811 |
| Prime factorization | 664949 | 665381 |
| Divisors count | 2 | 2 |
| Divisors | 1, 664949 | 1, 665381 |
| Number of properties | 4 | 5 |
| Additive primes | 21067th | |
| Chen primes | 21097th | 21108th |
| Isolated primes | 42295th | 42327th |
| Primes | 53942nd | 53980th |
| Sexy primes (1st member) | 11652nd | |
| Sophie germain primes | 5487th | |
| Roman numberals | ||
| Base 2 | 101000100101011101012 | 101000100111001001012 |
| Base 3 | 10202100102023 | 10202102012023 |
| Base 4 | 22021113114 | 22021302114 |
| Base 5 | 1322342445 | 1322430115 |
| Base 6 | 221302456 | 221322456 |
| Base 7 | 54364257 | 54406137 |
| Base 8 | 24225658 | 24234458 |
| Base 9 | 12231229 | 12236529 |
| Base 10 | 66494910 | 66538110 |
| Base 11 | 41464a11 | 414a0211 |
| Base 12 | 28098512 | 28108512 |
| Base 13 | 1a387c13 | 1a3b2213 |
| Base 14 | 13448514 | 1346b314 |
| Base 15 | d204e15 | d223b15 |
| Base 16 | a257516 | a272516 |