Compare 221902 vs 221909
| Property | 221902 | 221909 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 1109511 | 2219091 |
| Prime factorization | 2 × 110951 | 221909 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 110951, 221902 | 1, 221909 |
| Number of properties | 1 | 5 |
| Additive primes | 8003rd | |
| Isolated primes | 15080th | |
| Long primes | 7396th | |
| Primes | 19769th | |
| Pythagorean primes | 9865th | |
| Semiprimes | 49930th | |
| Roman numberals | ||
| Base 2 | 1101100010110011102 | 1101100010110101012 |
| Base 3 | 1020211011213 | 1020211012123 |
| Base 4 | 3120230324 | 3120231114 |
| Base 5 | 241001025 | 241001145 |
| Base 6 | 44311546 | 44312056 |
| Base 7 | 16126427 | 16126527 |
| Base 8 | 6613168 | 6613258 |
| Base 9 | 3673479 | 3673559 |
| Base 10 | 22190210 | 22190910 |
| Base 11 | 14179a11 | 1417a611 |
| Base 12 | a84ba12 | a850512 |
| Base 13 | 7a00513 | 7a00c13 |
| Base 14 | 5ac2214 | 5ac2914 |
| Base 15 | 45b3715 | 45b3e15 |
| Base 16 | 362ce16 | 362d516 |