Compare 18287 vs 18291
| Property | 18287 | 18291 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 4 |
| Prime factorization | 182871 | 31 × 71 × 131 × 671 |
| Prime factorization | 18287 | 3 × 7 × 13 × 67 |
| Divisors count | 2 | 16 |
| Divisors | 1, 18287 | 1, 3, 7, 13, 21, 39, 67, 91, 201, 273, 469, 871, 1407, 2613, 6097, 18291 |
| Number of properties | 4 | 0 |
| Chen primes | 1037th | |
| Long primes | 804th | |
| Primes | 2095th | |
| Twin primes (1st member) | 322nd | |
| Roman numberals | ||
| Base 2 | 1000111011011112 | 1000111011100112 |
| Base 3 | 2210020223 | 2210021103 |
| Base 4 | 101312334 | 101313034 |
| Base 5 | 10411225 | 10411315 |
| Base 6 | 2203556 | 2204036 |
| Base 7 | 1042137 | 1042207 |
| Base 8 | 435578 | 435638 |
| Base 9 | 270689 | 270739 |
| Base 10 | 1828710 | 1829110 |
| Base 11 | 1281511 | 1281911 |
| Base 12 | a6bb12 | a70312 |
| Base 13 | 842913 | 843013 |
| Base 14 | 694314 | 694714 |
| Base 15 | 564215 | 564615 |
| Base 16 | 476f16 | 477316 |