Compare 221385 vs 221393
| Property | 221385 | 221393 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 51 × 147591 | 2213931 |
| Prime factorization | 3 × 5 × 14759 | 221393 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 5, 15, 14759, 44277, 73795, 221385 | 1, 221393 |
| Number of properties | 0 | 7 |
| Chen primes | 8220th | |
| Harmonic primes | 7404th | |
| Isolated primes | 15048th | |
| Long primes | 7384th | |
| Primes | 19725th | |
| Pythagorean primes | 9840th | |
| Sexy primes (1st member) | 4666th | |
| Roman numberals | ||
| Base 2 | 1101100000110010012 | 1101100000110100012 |
| Base 3 | 1020202001103 | 1020202002023 |
| Base 4 | 3120030214 | 3120031014 |
| Base 5 | 240410205 | 240410335 |
| Base 6 | 44245336 | 44245456 |
| Base 7 | 16113037 | 16113147 |
| Base 8 | 6603118 | 6603218 |
| Base 9 | 3666139 | 3666229 |
| Base 10 | 22138510 | 22139310 |
| Base 11 | 14136a11 | 14137711 |
| Base 12 | a814912 | a815512 |
| Base 13 | 799c813 | 79a0313 |
| Base 14 | 5a97314 | 5a97b14 |
| Base 15 | 458e015 | 458e815 |
| Base 16 | 360c916 | 360d116 |