Compare 81287 vs 81293
| Property | 81287 | 81293 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 291 × 28031 | 812931 |
| Prime factorization | 29 × 2803 | 81293 |
| Divisors count | 4 | 2 |
| Divisors | 1, 29, 2803, 81287 | 1, 81293 |
| Number of properties | 1 | 6 |
| Additive primes | 3307th | |
| Harmonic primes | 3003rd | |
| Isolated primes | 5906th | |
| Primes | 7955th | |
| Pythagorean primes | 3964th | |
| Semiprimes | 19204th | |
| Sexy primes (1st member) | 2068th | |
| Roman numberals | ||
| Base 2 | 100111101100001112 | 100111101100011012 |
| Base 3 | 110101111223 | 110101112123 |
| Base 4 | 1033120134 | 1033120314 |
| Base 5 | 101001225 | 101001335 |
| Base 6 | 14241556 | 14242056 |
| Base 7 | 4556637 | 4560027 |
| Base 8 | 2366078 | 2366158 |
| Base 9 | 1334489 | 1334559 |
| Base 10 | 8128710 | 8129310 |
| Base 11 | 5608811 | 5609311 |
| Base 12 | 3b05b12 | 3b06512 |
| Base 13 | 2accb13 | 2b00413 |
| Base 14 | 218a314 | 218a914 |
| Base 15 | 1914215 | 1914815 |
| Base 16 | 13d8716 | 13d8d16 |