Compare 21283 vs 21293
| Property | 21283 | 21293 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 212831 | 1071 × 1991 |
| Prime factorization | 21283 | 107 × 199 |
| Divisors count | 2 | 4 |
| Divisors | 1, 21283 | 1, 107, 199, 21293 |
| Number of properties | 5 | 1 |
| Happy primes | 395th | |
| Isolated primes | 1670th | |
| Left-truncatable primes | 170th | |
| Primes | 2391st | |
| Semiprimes | 5396th | |
| Sexy primes (2nd member) | 724th | |
| Roman numberals | ||
| Base 2 | 1010011001000112 | 1010011001011012 |
| Base 3 | 10020120213 | 10020121223 |
| Base 4 | 110302034 | 110302314 |
| Base 5 | 11401135 | 11401335 |
| Base 6 | 2423116 | 2423256 |
| Base 7 | 1160237 | 1160367 |
| Base 8 | 514438 | 514558 |
| Base 9 | 321679 | 321789 |
| Base 10 | 2128310 | 2129310 |
| Base 11 | 14a9911 | 14aa811 |
| Base 12 | 1039712 | 103a512 |
| Base 13 | 98c213 | 98cc13 |
| Base 14 | 7a8314 | 7a8d14 |
| Base 15 | 648d15 | 649815 |
| Base 16 | 532316 | 532d16 |