Compare 221497 vs 221506
| Property | 221497 | 221506 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2214971 | 21 × 1107531 |
| Prime factorization | 221497 | 2 × 110753 |
| Divisors count | 2 | 4 |
| Divisors | 1, 221497 | 1, 2, 110753, 221506 |
| Number of properties | 3 | 1 |
| Isolated primes | 15055th | |
| Primes | 19736th | |
| Pythagorean primes | 9847th | |
| Semiprimes | 49846th | |
| Roman numberals | ||
| Base 2 | 1101100001001110012 | 1101100001010000102 |
| Base 3 | 1020202111213 | 1020202112213 |
| Base 4 | 3120103214 | 3120110024 |
| Base 5 | 240414425 | 240420115 |
| Base 6 | 44252416 | 44252546 |
| Base 7 | 16115237 | 16115357 |
| Base 8 | 6604718 | 6605028 |
| Base 9 | 3667479 | 3667579 |
| Base 10 | 22149710 | 22150610 |
| Base 11 | 14146111 | 14146a11 |
| Base 12 | a822112 | a822a12 |
| Base 13 | 79a8313 | 79a8c13 |
| Base 14 | 5aa1314 | 5aa1c14 |
| Base 15 | 4596715 | 4597115 |
| Base 16 | 3613916 | 3614216 |