Compare 421807 vs 421809
| Property | 421807 | 421809 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 4218071 | 31 × 1406031 |
| Prime factorization | 421807 | 3 × 140603 |
| Divisors count | 2 | 4 |
| Divisors | 1, 421807 | 1, 3, 140603, 421809 |
| Number of properties | 4 | 1 |
| Chen primes | 14265th | |
| Isolated primes | 27574th | |
| Primes | 35529th | |
| Semiprimes | 92152nd | |
| Sexy primes (2nd member) | 7994th | |
| Roman numberals | ||
| Base 2 | 11001101111101011112 | 11001101111101100012 |
| Base 3 | 2101021211113 | 2101021211203 |
| Base 4 | 12123322334 | 12123323014 |
| Base 5 | 1014442125 | 1014442145 |
| Base 6 | 130124516 | 130124536 |
| Base 7 | 34045217 | 34045237 |
| Base 8 | 14676578 | 14676618 |
| Base 9 | 7125449 | 7125469 |
| Base 10 | 42180710 | 42180910 |
| Base 11 | 268a0111 | 268a0311 |
| Base 12 | 18412712 | 18412912 |
| Base 13 | 119cb913 | 119cbb13 |
| Base 14 | ada1114 | ada1314 |
| Base 15 | 84ea715 | 84ea915 |
| Base 16 | 66faf16 | 66fb116 |