Compare 21871 vs 22111
| Property | 21871 | 22111 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 218711 | 221111 |
| Prime factorization | 21871 | 22111 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21871 | 1, 22111 |
| Number of properties | 3 | 4 |
| Additive primes | 1135th | 1144th |
| Centered decagonal primes | 35th | |
| Isolated primes | 1711th | |
| Primes | 2454th | 2479th |
| Twin primes (2nd member) | 375th | |
| Roman numberals | ||
| Base 2 | 1010101011011112 | 1010110010111112 |
| Base 3 | 10100000013 | 10100222213 |
| Base 4 | 111112334 | 111211334 |
| Base 5 | 11444415 | 12014215 |
| Base 6 | 2451316 | 2502116 |
| Base 7 | 1205237 | 1213157 |
| Base 8 | 525578 | 531378 |
| Base 9 | 330019 | 332879 |
| Base 10 | 2187110 | 2211110 |
| Base 11 | 1548311 | 1568111 |
| Base 12 | 107a712 | 1096712 |
| Base 13 | 9c5513 | a0ab13 |
| Base 14 | 7d8314 | 80b514 |
| Base 15 | 673115 | 684115 |
| Base 16 | 556f16 | 565f16 |