Compare 21871 vs 22157
| Property | 21871 | 22157 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 218711 | 221571 |
| Prime factorization | 21871 | 22157 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21871 | 1, 22157 |
| Number of properties | 3 | 7 |
| Additive primes | 1135th | 1147th |
| Chen primes | 1217th | |
| Cousin primes (2nd member) | 377th | |
| Isolated primes | 1711th | |
| Primes | 2454th | 2485th |
| Prime triplets (2nd member) | 186th | |
| Pythagorean primes | 1232nd | |
| Twin primes (1st member) | 376th | |
| Roman numberals | ||
| Base 2 | 1010101011011112 | 1010110100011012 |
| Base 3 | 10100000013 | 10101011223 |
| Base 4 | 111112334 | 111220314 |
| Base 5 | 11444415 | 12021125 |
| Base 6 | 2451316 | 2503256 |
| Base 7 | 1205237 | 1214127 |
| Base 8 | 525578 | 532158 |
| Base 9 | 330019 | 333489 |
| Base 10 | 2187110 | 2215710 |
| Base 11 | 1548311 | 1571311 |
| Base 12 | 107a712 | 109a512 |
| Base 13 | 9c5513 | a11513 |
| Base 14 | 7d8314 | 810914 |
| Base 15 | 673115 | 687215 |
| Base 16 | 556f16 | 568d16 |