Compare 209 vs 218
| Property | 209 | 218 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 111 × 191 | 21 × 1091 |
| Prime factorization | 11 × 19 | 2 × 109 |
| Divisors count | 4 | 4 |
| Divisors | 1, 11, 19, 209 | 1, 2, 109, 218 |
| Number of properties | 1 | 1 |
| Semiprimes | 68th | 73rd |
| Roman numberals | CCIX | CCXVIII |
| Base 2 | 110100012 | 110110102 |
| Base 3 | 212023 | 220023 |
| Base 4 | 31014 | 31224 |
| Base 5 | 13145 | 13335 |
| Base 6 | 5456 | 10026 |
| Base 7 | 4167 | 4317 |
| Base 8 | 3218 | 3328 |
| Base 9 | 2529 | 2629 |
| Base 10 | 20910 | 21810 |
| Base 11 | 18011 | 18911 |
| Base 12 | 15512 | 16212 |
| Base 13 | 13113 | 13a13 |
| Base 14 | 10d14 | 11814 |
| Base 15 | de15 | e815 |
| Base 16 | d116 | da16 |