Compare 1807 vs 1818
| Property | 1807 | 1818 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 131 × 1391 | 21 × 32 × 1011 |
| Prime factorization | 13 × 139 | 2 × 3 × 3 × 101 |
| Divisors count | 4 | 12 |
| Divisors | 1, 13, 139, 1807 | 1, 2, 3, 6, 9, 18, 101, 202, 303, 606, 909, 1818 |
| Number of properties | 1 | 0 |
| Semiprimes | 520th | |
| Roman numberals | MDCCCVII | MDCCCXVIII |
| Base 2 | 111000011112 | 111000110102 |
| Base 3 | 21102213 | 21111003 |
| Base 4 | 1300334 | 1301224 |
| Base 5 | 242125 | 242335 |
| Base 6 | 122116 | 122306 |
| Base 7 | 51617 | 52057 |
| Base 8 | 34178 | 34328 |
| Base 9 | 24279 | 24409 |
| Base 10 | 180710 | 181810 |
| Base 11 | 13a311 | 140311 |
| Base 12 | 106712 | 107612 |
| Base 13 | a9013 | a9b13 |
| Base 14 | 93114 | 93c14 |
| Base 15 | 80715 | 81315 |
| Base 16 | 70f16 | 71a16 |