Compare 21997 vs 27883
| Property | 21997 | 27883 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 219971 | 278831 |
| Prime factorization | 21997 | 27883 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21997 | 1, 27883 |
| Number of properties | 8 | 6 |
| Chen primes | 1209th | |
| Happy primes | 490th | |
| Harmonic primes | 1133rd | |
| Isolated primes | 1721st | 2156th |
| Left-truncatable primes | 173rd | 185th |
| Primes | 2464th | 3043rd |
| Pythagorean primes | 1223rd | |
| Sexy primes (1st member) | 743rd | |
| Sexy primes (2nd member) | 742nd | |
| Sexy prime triplets (2nd member) | 202nd | |
| Ulam primes | 232nd | |
| Roman numberals | ||
| Base 2 | 1010101111011012 | 1101100111010112 |
| Base 3 | 10100112013 | 11020202013 |
| Base 4 | 111132314 | 123032234 |
| Base 5 | 12004425 | 13430135 |
| Base 6 | 2455016 | 3330316 |
| Base 7 | 1210637 | 1442027 |
| Base 8 | 527558 | 663538 |
| Base 9 | 331519 | 422219 |
| Base 10 | 2199710 | 2788310 |
| Base 11 | 1558811 | 19a4911 |
| Base 12 | 1089112 | 1417712 |
| Base 13 | a02113 | c8cb13 |
| Base 14 | 803314 | a23914 |
| Base 15 | 67b715 | 83dd15 |
| Base 16 | 55ed16 | 6ceb16 |