Compare 221999 vs 222001
| Property | 221999 | 222001 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2219991 | 131 × 170771 |
| Prime factorization | 221999 | 13 × 17077 |
| Divisors count | 2 | 4 |
| Divisors | 1, 221999 | 1, 13, 17077, 222001 |
| Number of properties | 4 | 1 |
| Chen primes | 8241st | |
| Isolated primes | 15083rd | |
| Primes | 19776th | |
| Semiprimes | 49951st | |
| Sophie germain primes | 2240th | |
| Roman numberals | ||
| Base 2 | 1101100011001011112 | 1101100011001100012 |
| Base 3 | 1020211120123 | 1020211120213 |
| Base 4 | 3120302334 | 3120303014 |
| Base 5 | 241004445 | 241010015 |
| Base 6 | 44314356 | 44314416 |
| Base 7 | 16131417 | 16131437 |
| Base 8 | 6614578 | 6614618 |
| Base 9 | 3674659 | 3674679 |
| Base 10 | 22199910 | 22200110 |
| Base 11 | 14187811 | 14187a11 |
| Base 12 | a857b12 | a858112 |
| Base 13 | 7a07b13 | 7a08013 |
| Base 14 | 5ac9114 | 5ac9314 |
| Base 15 | 45b9e15 | 45ba115 |
| Base 16 | 3632f16 | 3633116 |