Compare 21269 vs 21281
| Property | 21269 | 21281 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 212691 | 131 × 16371 |
| Prime factorization | 21269 | 13 × 1637 |
| Divisors count | 2 | 4 |
| Divisors | 1, 21269 | 1, 13, 1637, 21281 |
| Number of properties | 7 | 1 |
| Chen primes | 1173rd | |
| Harmonic primes | 875th | |
| Isolated primes | 1668th | |
| Long primes | 908th | |
| Primes | 2389th | |
| Pythagorean primes | 1185th | |
| Semiprimes | 5393rd | |
| Super primes | 355th | |
| Roman numberals | ||
| Base 2 | 1010011000101012 | 1010011001000012 |
| Base 3 | 10020112023 | 10020120123 |
| Base 4 | 110301114 | 110302014 |
| Base 5 | 11400345 | 11401115 |
| Base 6 | 2422456 | 2423056 |
| Base 7 | 1160037 | 1160217 |
| Base 8 | 514258 | 514418 |
| Base 9 | 321529 | 321659 |
| Base 10 | 2126910 | 2128110 |
| Base 11 | 14a8611 | 14a9711 |
| Base 12 | 1038512 | 1039512 |
| Base 13 | 98b113 | 98c013 |
| Base 14 | 7a7314 | 7a8114 |
| Base 15 | 647e15 | 648b15 |
| Base 16 | 531516 | 532116 |