Compare 1809 vs 1813
| Property | 1809 | 1813 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 2 |
| Total factors | 4 | 3 |
| Prime factorization | 33 × 671 | 72 × 371 |
| Prime factorization | 3 × 3 × 3 × 67 | 7 × 7 × 37 |
| Divisors count | 8 | 6 |
| Divisors | 1, 3, 9, 27, 67, 201, 603, 1809 | 1, 7, 37, 49, 259, 1813 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCCCIX | MDCCCXIII |
| Base 2 | 111000100012 | 111000101012 |
| Base 3 | 21110003 | 21110113 |
| Base 4 | 1301014 | 1301114 |
| Base 5 | 242145 | 242235 |
| Base 6 | 122136 | 122216 |
| Base 7 | 51637 | 52007 |
| Base 8 | 34218 | 34258 |
| Base 9 | 24309 | 24349 |
| Base 10 | 180910 | 181310 |
| Base 11 | 13a511 | 13a911 |
| Base 12 | 106912 | 107112 |
| Base 13 | a9213 | a9613 |
| Base 14 | 93314 | 93714 |
| Base 15 | 80915 | 80d15 |
| Base 16 | 71116 | 71516 |