Compare 664507 vs 664513
| Property | 664507 | 664513 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6645071 | 171 × 390891 |
| Prime factorization | 664507 | 17 × 39089 |
| Divisors count | 2 | 4 |
| Divisors | 1, 664507 | 1, 17, 39089, 664513 |
| Number of properties | 3 | 1 |
| Cousin primes (1st member) | 5811th | |
| Isolated primes | 42267th | |
| Primes | 53904th | |
| Semiprimes | 142162nd | |
| Roman numberals | ||
| Base 2 | 101000100011101110112 | 101000100011110000012 |
| Base 3 | 10202021121013 | 10202021121213 |
| Base 4 | 22020323234 | 22020330014 |
| Base 5 | 1322310125 | 1322310235 |
| Base 6 | 221242316 | 221242416 |
| Base 7 | 54352247 | 54352337 |
| Base 8 | 24216738 | 24217018 |
| Base 9 | 12224719 | 12224779 |
| Base 10 | 66450710 | 66451310 |
| Base 11 | 41428811 | 41429311 |
| Base 12 | 28067712 | 28068112 |
| Base 13 | 1a35cc13 | 1a360513 |
| Base 14 | 13424b14 | 13425314 |
| Base 15 | d1d5715 | d1d5d15 |
| Base 16 | a23bb16 | a23c116 |