Compare 221909 vs 221999
| Property | 221909 | 221999 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2219091 | 2219991 |
| Prime factorization | 221909 | 221999 |
| Divisors count | 2 | 2 |
| Divisors | 1, 221909 | 1, 221999 |
| Number of properties | 5 | 4 |
| Additive primes | 8003rd | |
| Chen primes | 8241st | |
| Isolated primes | 15080th | 15083rd |
| Long primes | 7396th | |
| Primes | 19769th | 19776th |
| Pythagorean primes | 9865th | |
| Sophie germain primes | 2240th | |
| Roman numberals | ||
| Base 2 | 1101100010110101012 | 1101100011001011112 |
| Base 3 | 1020211012123 | 1020211120123 |
| Base 4 | 3120231114 | 3120302334 |
| Base 5 | 241001145 | 241004445 |
| Base 6 | 44312056 | 44314356 |
| Base 7 | 16126527 | 16131417 |
| Base 8 | 6613258 | 6614578 |
| Base 9 | 3673559 | 3674659 |
| Base 10 | 22190910 | 22199910 |
| Base 11 | 1417a611 | 14187811 |
| Base 12 | a850512 | a857b12 |
| Base 13 | 7a00c13 | 7a07b13 |
| Base 14 | 5ac2914 | 5ac9114 |
| Base 15 | 45b3e15 | 45b9e15 |
| Base 16 | 362d516 | 3632f16 |