Compare 18947 vs 18954
| Property | 18947 | 18954 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 8 |
| Prime factorization | 189471 | 21 × 36 × 131 |
| Prime factorization | 18947 | 2 × 3 × 3 × 3 × 3 × 3 × 3 × 13 |
| Divisors count | 2 | 28 |
| Divisors | 1, 18947 | 1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 243, 351, 486, 702, 729, 1053, 1458, 2106, 3159, 6318, 9477, 18954 |
| Number of properties | 5 | 0 |
| Additive primes | 1007th | |
| Chen primes | 1068th | |
| Isolated primes | 1502nd | |
| Primes | 2155th | |
| Safe primes | 185th | |
| Roman numberals | ||
| Base 2 | 1001010000000112 | 1001010000010102 |
| Base 3 | 2212222023 | 2220000003 |
| Base 4 | 102200034 | 102200224 |
| Base 5 | 11012425 | 11013045 |
| Base 6 | 2234156 | 2234306 |
| Base 7 | 1061457 | 1061557 |
| Base 8 | 450038 | 450128 |
| Base 9 | 278829 | 280009 |
| Base 10 | 1894710 | 1895410 |
| Base 11 | 1326511 | 1327111 |
| Base 12 | ab6b12 | ab7612 |
| Base 13 | 881613 | 882013 |
| Base 14 | 6c9514 | 6c9c14 |
| Base 15 | 593215 | 593915 |
| Base 16 | 4a0316 | 4a0a16 |