Compare 13931 vs 18181
| Property | 13931 | 18181 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 139311 | 181811 |
| Prime factorization | 13931 | 18181 |
| Divisors count | 2 | 2 |
| Divisors | 1, 13931 | 1, 18181 |
| Number of properties | 8 | 9 |
| Additive primes | 789th | 979th |
| Chen primes | 837th | |
| Dihedral primes | 8th | |
| Harmonic primes | 595th | 754th |
| Isolated primes | 1444th | |
| Long primes | 641st | |
| Lucky primes | 341st | |
| Palindromic primes | 31st | 42nd |
| Primes | 1647th | 2083rd |
| Pythagorean primes | 1029th | |
| Super primes | 314th | |
| Twin primes (1st member) | 260th | |
| Ulam primes | 122nd | |
| Roman numberals | ||
| Base 2 | 110110011010112 | 1000111000001012 |
| Base 3 | 2010022223 | 2202211013 |
| Base 4 | 31212234 | 101300114 |
| Base 5 | 4212115 | 10402115 |
| Base 6 | 1442556 | 2201016 |
| Base 7 | 554217 | 1040027 |
| Base 8 | 331538 | 434058 |
| Base 9 | 210889 | 268419 |
| Base 10 | 1393110 | 1818110 |
| Base 11 | a51511 | 1272911 |
| Base 12 | 808b12 | a63112 |
| Base 13 | 645813 | 837713 |
| Base 14 | 511114 | 68a914 |
| Base 15 | 41db15 | 55c115 |
| Base 16 | 366b16 | 470516 |