Compare 21271 vs 21283
| Property | 21271 | 21283 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 891 × 2391 | 212831 |
| Prime factorization | 89 × 239 | 21283 |
| Divisors count | 4 | 2 |
| Divisors | 1, 89, 239, 21271 | 1, 21283 |
| Number of properties | 1 | 5 |
| Happy primes | 395th | |
| Isolated primes | 1670th | |
| Left-truncatable primes | 170th | |
| Primes | 2391st | |
| Semiprimes | 5391st | |
| Sexy primes (2nd member) | 724th | |
| Roman numberals | ||
| Base 2 | 1010011000101112 | 1010011001000112 |
| Base 3 | 10020112113 | 10020120213 |
| Base 4 | 110301134 | 110302034 |
| Base 5 | 11400415 | 11401135 |
| Base 6 | 2422516 | 2423116 |
| Base 7 | 1160057 | 1160237 |
| Base 8 | 514278 | 514438 |
| Base 9 | 321549 | 321679 |
| Base 10 | 2127110 | 2128310 |
| Base 11 | 14a8811 | 14a9911 |
| Base 12 | 1038712 | 1039712 |
| Base 13 | 98b313 | 98c213 |
| Base 14 | 7a7514 | 7a8314 |
| Base 15 | 648115 | 648d15 |
| Base 16 | 531716 | 532316 |