Compare 1805 vs 1815
| Property | 1805 | 1815 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 3 | 4 |
| Prime factorization | 51 × 192 | 31 × 51 × 112 |
| Prime factorization | 5 × 19 × 19 | 3 × 5 × 11 × 11 |
| Divisors count | 6 | 12 |
| Divisors | 1, 5, 19, 95, 361, 1805 | 1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCCCV | MDCCCXV |
| Base 2 | 111000011012 | 111000101112 |
| Base 3 | 21102123 | 21110203 |
| Base 4 | 1300314 | 1301134 |
| Base 5 | 242105 | 242305 |
| Base 6 | 122056 | 122236 |
| Base 7 | 51567 | 52027 |
| Base 8 | 34158 | 34278 |
| Base 9 | 24259 | 24369 |
| Base 10 | 180510 | 181510 |
| Base 11 | 13a111 | 140011 |
| Base 12 | 106512 | 107312 |
| Base 13 | a8b13 | a9813 |
| Base 14 | 92d14 | 93914 |
| Base 15 | 80515 | 81015 |
| Base 16 | 70d16 | 71716 |