Compare 642790 vs 642797
| Property | 642790 | 642797 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 51 × 642791 | 6427971 |
| Prime factorization | 2 × 5 × 64279 | 642797 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 5, 10, 64279, 128558, 321395, 642790 | 1, 642797 |
| Number of properties | 0 | 5 |
| Chen primes | 20448th | |
| Left-truncatable primes | 541st | |
| Primes | 52273rd | |
| Sexy primes (2nd member) | 11324th | |
| Twin primes (1st member) | 5654th | |
| Roman numberals | ||
| Base 2 | 100111001110111001102 | 100111001110111011012 |
| Base 3 | 10121222020013 | 10121222020223 |
| Base 4 | 21303232124 | 21303232314 |
| Base 5 | 1310321305 | 1310321425 |
| Base 6 | 214355146 | 214355256 |
| Base 7 | 53150117 | 53150217 |
| Base 8 | 23473468 | 23473558 |
| Base 9 | 11786619 | 11786689 |
| Base 10 | 64279010 | 64279710 |
| Base 11 | 3a9a3511 | 3a9a4111 |
| Base 12 | 26bb9a12 | 26bba512 |
| Base 13 | 19676513 | 19676c13 |
| Base 14 | 12a37814 | 12a38114 |
| Base 15 | ca6ca15 | ca6d215 |
| Base 16 | 9cee616 | 9ceed16 |