Compare 21997 vs 27823
| Property | 21997 | 27823 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 219971 | 278231 |
| Prime factorization | 21997 | 27823 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21997 | 1, 27823 |
| Number of properties | 8 | 7 |
| Chen primes | 1209th | |
| Cousin primes (1st member) | 444th | |
| Happy primes | 489th | |
| Isolated primes | 1721st | 2152nd |
| Left-truncatable primes | 173rd | 184th |
| Long primes | 1156th | |
| Primes | 2464th | 3039th |
| Pythagorean primes | 1223rd | |
| Sexy primes (1st member) | 743rd | |
| Sexy primes (2nd member) | 742nd | 900th |
| Sexy prime triplets (2nd member) | 202nd | |
| Roman numberals | ||
| Base 2 | 1010101111011012 | 1101100101011112 |
| Base 3 | 10100112013 | 11020111113 |
| Base 4 | 111132314 | 123022334 |
| Base 5 | 12004425 | 13422435 |
| Base 6 | 2455016 | 3324516 |
| Base 7 | 1210637 | 1440557 |
| Base 8 | 527558 | 662578 |
| Base 9 | 331519 | 421449 |
| Base 10 | 2199710 | 2782310 |
| Base 11 | 1558811 | 199a411 |
| Base 12 | 1089112 | 1412712 |
| Base 13 | a02113 | c88313 |
| Base 14 | 803314 | a1d514 |
| Base 15 | 67b715 | 839d15 |
| Base 16 | 55ed16 | 6caf16 |