Compare 18187 vs 18189
| Property | 18187 | 18189 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 131 × 13991 | 32 × 431 × 471 |
| Prime factorization | 13 × 1399 | 3 × 3 × 43 × 47 |
| Divisors count | 4 | 12 |
| Divisors | 1, 13, 1399, 18187 | 1, 3, 9, 43, 47, 129, 141, 387, 423, 2021, 6063, 18189 |
| Number of properties | 1 | 0 |
| Semiprimes | 4633rd | |
| Roman numberals | ||
| Base 2 | 1000111000010112 | 1000111000011012 |
| Base 3 | 2202211213 | 2202212003 |
| Base 4 | 101300234 | 101300314 |
| Base 5 | 10402225 | 10402245 |
| Base 6 | 2201116 | 2201136 |
| Base 7 | 1040117 | 1040137 |
| Base 8 | 434138 | 434158 |
| Base 9 | 268479 | 268509 |
| Base 10 | 1818710 | 1818910 |
| Base 11 | 1273411 | 1273611 |
| Base 12 | a63712 | a63912 |
| Base 13 | 838013 | 838213 |
| Base 14 | 68b114 | 68b314 |
| Base 15 | 55c715 | 55c915 |
| Base 16 | 470b16 | 470d16 |