Compare 642797 vs 642808
| Property | 642797 | 642808 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 5 |
| Prime factorization | 6427971 | 23 × 191 × 42291 |
| Prime factorization | 642797 | 2 × 2 × 2 × 19 × 4229 |
| Divisors count | 2 | 16 |
| Divisors | 1, 642797 | 1, 2, 4, 8, 19, 38, 76, 152, 4229, 8458, 16916, 33832, 80351, 160702, 321404, 642808 |
| Number of properties | 5 | 0 |
| Chen primes | 20448th | |
| Left-truncatable primes | 541st | |
| Primes | 52273rd | |
| Sexy primes (2nd member) | 11324th | |
| Twin primes (1st member) | 5654th | |
| Roman numberals | ||
| Base 2 | 100111001110111011012 | 100111001110111110002 |
| Base 3 | 10121222020223 | 10121222022013 |
| Base 4 | 21303232314 | 21303233204 |
| Base 5 | 1310321425 | 1310322135 |
| Base 6 | 214355256 | 214355446 |
| Base 7 | 53150217 | 53150357 |
| Base 8 | 23473558 | 23473708 |
| Base 9 | 11786689 | 11786819 |
| Base 10 | 64279710 | 64280810 |
| Base 11 | 3a9a4111 | 3a9a5111 |
| Base 12 | 26bba512 | 26bbb412 |
| Base 13 | 19676c13 | 19677a13 |
| Base 14 | 12a38114 | 12a38c14 |
| Base 15 | ca6d215 | ca6dd15 |
| Base 16 | 9ceed16 | 9cef816 |