Compare 287 vs 293
| Property | 287 | 293 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 411 | 2931 |
| Prime factorization | 7 × 41 | 293 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 41, 287 | 1, 293 |
| Number of properties | 1 | 8 |
| Chen primes | 46th | |
| Happy primes | 15th | |
| Harmonic primes | 24th | |
| Isolated primes | 25th | |
| Primes | 62nd | |
| Pythagorean primes | 29th | |
| Right-truncatable primes | 16th | |
| Semiprimes | 89th | |
| Sophie germain primes | 20th | |
| Roman numberals | CCLXXXVII | CCXCIII |
| Base 2 | 1000111112 | 1001001012 |
| Base 3 | 1011223 | 1012123 |
| Base 4 | 101334 | 102114 |
| Base 5 | 21225 | 21335 |
| Base 6 | 11556 | 12056 |
| Base 7 | 5607 | 5667 |
| Base 8 | 4378 | 4458 |
| Base 9 | 3489 | 3559 |
| Base 10 | 28710 | 29310 |
| Base 11 | 24111 | 24711 |
| Base 12 | 1bb12 | 20512 |
| Base 13 | 19113 | 19713 |
| Base 14 | 16714 | 16d14 |
| Base 15 | 14215 | 14815 |
| Base 16 | 11f16 | 12516 |