Compare 16661 vs 18181
| Property | 16661 | 18181 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 166611 | 181811 |
| Prime factorization | 16661 | 18181 |
| Divisors count | 2 | 2 |
| Divisors | 1, 16661 | 1, 18181 |
| Number of properties | 8 | 9 |
| Additive primes | 979th | |
| Chen primes | 971st | |
| Cousin primes (2nd member) | 309th | |
| Dihedral primes | 8th | |
| Harmonic primes | 699th | 754th |
| Isolated primes | 1343rd | 1444th |
| Long primes | 745th | |
| Lucky primes | 341st | |
| Palindromic primes | 39th | 42nd |
| Primes | 1928th | 2083rd |
| Pythagorean primes | 956th | 1029th |
| Super primes | 314th | |
| Roman numberals | ||
| Base 2 | 1000001000101012 | 1000111000001012 |
| Base 3 | 2112120023 | 2202211013 |
| Base 4 | 100101114 | 101300114 |
| Base 5 | 10131215 | 10402115 |
| Base 6 | 2050456 | 2201016 |
| Base 7 | 664017 | 1040027 |
| Base 8 | 404258 | 434058 |
| Base 9 | 247629 | 268419 |
| Base 10 | 1666110 | 1818110 |
| Base 11 | 1157711 | 1272911 |
| Base 12 | 978512 | a63112 |
| Base 13 | 777813 | 837713 |
| Base 14 | 610114 | 68a914 |
| Base 15 | 4e0b15 | 55c115 |
| Base 16 | 411516 | 470516 |