Compare 1801 vs 1808
| Property | 1801 | 1808 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 5 |
| Prime factorization | 18011 | 24 × 1131 |
| Prime factorization | 1801 | 2 × 2 × 2 × 2 × 113 |
| Divisors count | 2 | 10 |
| Divisors | 1, 1801 | 1, 2, 4, 8, 16, 113, 226, 452, 904, 1808 |
| Number of properties | 7 | 0 |
| Chen primes | 174th | |
| Cuban primes 1 | 13th | |
| Harmonic primes | 99th | |
| Isolated primes | 168th | |
| Lucky primes | 66th | |
| Primes | 279th | |
| Pythagorean primes | 136th | |
| Roman numberals | MDCCCI | MDCCCVIII |
| Base 2 | 111000010012 | 111000100002 |
| Base 3 | 21102013 | 21102223 |
| Base 4 | 1300214 | 1301004 |
| Base 5 | 242015 | 242135 |
| Base 6 | 122016 | 122126 |
| Base 7 | 51527 | 51627 |
| Base 8 | 34118 | 34208 |
| Base 9 | 24219 | 24289 |
| Base 10 | 180110 | 180810 |
| Base 11 | 139811 | 13a411 |
| Base 12 | 106112 | 106812 |
| Base 13 | a8713 | a9113 |
| Base 14 | 92914 | 93214 |
| Base 15 | 80115 | 80815 |
| Base 16 | 70916 | 71016 |