Compare 1813 vs 1818
| Property | 1813 | 1818 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 3 | 4 |
| Prime factorization | 72 × 371 | 21 × 32 × 1011 |
| Prime factorization | 7 × 7 × 37 | 2 × 3 × 3 × 101 |
| Divisors count | 6 | 12 |
| Divisors | 1, 7, 37, 49, 259, 1813 | 1, 2, 3, 6, 9, 18, 101, 202, 303, 606, 909, 1818 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCCCXIII | MDCCCXVIII |
| Base 2 | 111000101012 | 111000110102 |
| Base 3 | 21110113 | 21111003 |
| Base 4 | 1301114 | 1301224 |
| Base 5 | 242235 | 242335 |
| Base 6 | 122216 | 122306 |
| Base 7 | 52007 | 52057 |
| Base 8 | 34258 | 34328 |
| Base 9 | 24349 | 24409 |
| Base 10 | 181310 | 181810 |
| Base 11 | 13a911 | 140311 |
| Base 12 | 107112 | 107612 |
| Base 13 | a9613 | a9b13 |
| Base 14 | 93714 | 93c14 |
| Base 15 | 80d15 | 81315 |
| Base 16 | 71516 | 71a16 |