Compare 201809 vs 201881
| Property | 201809 | 201881 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2018091 | 2018811 |
| Prime factorization | 201809 | 201881 |
| Divisors count | 2 | 2 |
| Divisors | 1, 201809 | 1, 201881 |
| Number of properties | 5 | 4 |
| Chen primes | 7580th | 7583rd |
| Harmonic primes | 6807th | |
| Isolated primes | 13787th | 13790th |
| Primes | 18128th | 18135th |
| Pythagorean primes | 9049th | 9053rd |
| Roman numberals | ||
| Base 2 | 1100010100010100012 | 1100010100100110012 |
| Base 3 | 1010202111023 | 1010202210023 |
| Base 4 | 3011011014 | 3011021214 |
| Base 5 | 224242145 | 224300115 |
| Base 6 | 41541456 | 41543456 |
| Base 7 | 15002367 | 15004017 |
| Base 8 | 6121218 | 6122318 |
| Base 9 | 3367429 | 3368329 |
| Base 10 | 20180910 | 20188110 |
| Base 11 | 12869311 | 12874911 |
| Base 12 | 9895512 | 989b512 |
| Base 13 | 70b1a13 | 70b7413 |
| Base 14 | 5378d14 | 5380114 |
| Base 15 | 3ebde15 | 3ec3b15 |
| Base 16 | 3145116 | 3149916 |