Compare 642479 vs 642487
| Property | 642479 | 642487 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 711 × 90491 | 6424871 |
| Prime factorization | 71 × 9049 | 642487 |
| Divisors count | 4 | 2 |
| Divisors | 1, 71, 9049, 642479 | 1, 642487 |
| Number of properties | 1 | 4 |
| Additive primes | 20423rd | |
| Chen primes | 20439th | |
| Isolated primes | 40953rd | |
| Primes | 52254th | |
| Semiprimes | 137660th | |
| Roman numberals | ||
| Base 2 | 100111001101101011112 | 100111001101101101112 |
| Base 3 | 10121220221123 | 10121220222113 |
| Base 4 | 21303122334 | 21303123134 |
| Base 5 | 1310244045 | 1310244225 |
| Base 6 | 214342356 | 214342516 |
| Base 7 | 53140557 | 53140667 |
| Base 8 | 23466578 | 23466678 |
| Base 9 | 11782759 | 11782849 |
| Base 10 | 64247910 | 64248710 |
| Base 11 | 3a978211 | 3a978a11 |
| Base 12 | 26b97b12 | 26b98712 |
| Base 13 | 19658613 | 19659113 |
| Base 14 | 12a1d514 | 12a1dd14 |
| Base 15 | ca56e15 | ca57715 |
| Base 16 | 9cdaf16 | 9cdb716 |