Compare 1809 vs 1816
| Property | 1809 | 1816 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 2 |
| Total factors | 4 | 4 |
| Prime factorization | 33 × 671 | 23 × 2271 |
| Prime factorization | 3 × 3 × 3 × 67 | 2 × 2 × 2 × 227 |
| Divisors count | 8 | 8 |
| Divisors | 1, 3, 9, 27, 67, 201, 603, 1809 | 1, 2, 4, 8, 227, 454, 908, 1816 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCCCIX | MDCCCXVI |
| Base 2 | 111000100012 | 111000110002 |
| Base 3 | 21110003 | 21110213 |
| Base 4 | 1301014 | 1301204 |
| Base 5 | 242145 | 242315 |
| Base 6 | 122136 | 122246 |
| Base 7 | 51637 | 52037 |
| Base 8 | 34218 | 34308 |
| Base 9 | 24309 | 24379 |
| Base 10 | 180910 | 181610 |
| Base 11 | 13a511 | 140111 |
| Base 12 | 106912 | 107412 |
| Base 13 | a9213 | a9913 |
| Base 14 | 93314 | 93a14 |
| Base 15 | 80915 | 81115 |
| Base 16 | 71116 | 71816 |