Compare 21283 vs 21997
| Property | 21283 | 21997 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 212831 | 219971 |
| Prime factorization | 21283 | 21997 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21283 | 1, 21997 |
| Number of properties | 5 | 8 |
| Chen primes | 1209th | |
| Happy primes | 395th | |
| Isolated primes | 1670th | 1721st |
| Left-truncatable primes | 170th | 173rd |
| Primes | 2391st | 2464th |
| Pythagorean primes | 1223rd | |
| Sexy primes (1st member) | 743rd | |
| Sexy primes (2nd member) | 724th | 742nd |
| Sexy prime triplets (2nd member) | 202nd | |
| Roman numberals | ||
| Base 2 | 1010011001000112 | 1010101111011012 |
| Base 3 | 10020120213 | 10100112013 |
| Base 4 | 110302034 | 111132314 |
| Base 5 | 11401135 | 12004425 |
| Base 6 | 2423116 | 2455016 |
| Base 7 | 1160237 | 1210637 |
| Base 8 | 514438 | 527558 |
| Base 9 | 321679 | 331519 |
| Base 10 | 2128310 | 2199710 |
| Base 11 | 14a9911 | 1558811 |
| Base 12 | 1039712 | 1089112 |
| Base 13 | 98c213 | a02113 |
| Base 14 | 7a8314 | 803314 |
| Base 15 | 648d15 | 67b715 |
| Base 16 | 532316 | 55ed16 |