Compare 1801 vs 2017
| Property | 1801 | 2017 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18011 | 20171 |
| Prime factorization | 1801 | 2017 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1801 | 1, 2017 |
| Number of properties | 7 | 7 |
| Chen primes | 174th | 187th |
| Cuban primes 1 | 13th | |
| Harmonic primes | 99th | |
| Isolated primes | 168th | 185th |
| Long primes | 117th | |
| Lucky primes | 66th | |
| Primes | 279th | 306th |
| Pythagorean primes | 136th | 148th |
| Sexy primes (2nd member) | 130th | |
| Solinas primes | 54th | |
| Roman numberals | MDCCCI | MMXVII |
| Base 2 | 111000010012 | 111111000012 |
| Base 3 | 21102013 | 22022013 |
| Base 4 | 1300214 | 1332014 |
| Base 5 | 242015 | 310325 |
| Base 6 | 122016 | 132016 |
| Base 7 | 51527 | 56117 |
| Base 8 | 34118 | 37418 |
| Base 9 | 24219 | 26819 |
| Base 10 | 180110 | 201710 |
| Base 11 | 139811 | 157411 |
| Base 12 | 106112 | 120112 |
| Base 13 | a8713 | bc213 |
| Base 14 | 92914 | a4114 |
| Base 15 | 80115 | 8e715 |
| Base 16 | 70916 | 7e116 |