Compare 642005 vs 642011
| Property | 642005 | 642011 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 5 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 51 × 71 × 131 × 171 × 831 | 6420111 |
| Prime factorization | 5 × 7 × 13 × 17 × 83 | 642011 |
| Divisors count | 32 | 2 |
| Divisors | 1, 5, 7, 13, 17, 35, 65, 83, 85, 91, 119, 221, 415, 455, 581, 595, 1079, 1105, 1411, 1547, 2905, 5395, 7055, 7553, 7735, 9877, 18343, 37765, 49385, 91715, 128401, 642005 | 1, 642011 |
| Number of properties | 0 | 4 |
| Chen primes | 20430th | |
| Primes | 52223rd | |
| Super primes | 5339th | |
| Twin primes (1st member) | 5647th | |
| Roman numberals | ||
| Base 2 | 100111001011110101012 | 100111001011110110112 |
| Base 3 | 10121211222223 | 10121212000123 |
| Base 4 | 21302331114 | 21302331234 |
| Base 5 | 1310210105 | 1310210215 |
| Base 6 | 214321256 | 214321356 |
| Base 7 | 53125107 | 53125167 |
| Base 8 | 23457258 | 23457338 |
| Base 9 | 11775889 | 11776059 |
| Base 10 | 64200510 | 64201110 |
| Base 11 | 3a939111 | 3a939711 |
| Base 12 | 26b64512 | 26b64b12 |
| Base 13 | 1962b013 | 1962b613 |
| Base 14 | 129d7714 | 129d7d14 |
| Base 15 | ca35515 | ca35b15 |
| Base 16 | 9cbd516 | 9cbdb16 |