Compare 18181 vs 18443
| Property | 18181 | 18443 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 181811 | 184431 |
| Prime factorization | 18181 | 18443 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18181 | 1, 18443 |
| Number of properties | 9 | 8 |
| Additive primes | 979th | |
| Cousin primes (2nd member) | 330th | |
| Dihedral primes | 8th | |
| Harmonic primes | 754th | 763rd |
| Isolated primes | 1444th | 1468th |
| Left-truncatable primes | 169th | |
| Lucky primes | 341st | |
| Palindromic primes | 42nd | |
| Primes | 2083rd | 2113th |
| Pythagorean primes | 1029th | |
| Safe primes | 181st | |
| Sophie germain primes | 306th | |
| Super primes | 314th | 319th |
| Roman numberals | ||
| Base 2 | 1000111000001012 | 1001000000010112 |
| Base 3 | 2202211013 | 2210220023 |
| Base 4 | 101300114 | 102000234 |
| Base 5 | 10402115 | 10422335 |
| Base 6 | 2201016 | 2212156 |
| Base 7 | 1040027 | 1045257 |
| Base 8 | 434058 | 440138 |
| Base 9 | 268419 | 272629 |
| Base 10 | 1818110 | 1844310 |
| Base 11 | 1272911 | 1294711 |
| Base 12 | a63112 | a80b12 |
| Base 13 | 837713 | 851913 |
| Base 14 | 68a914 | 6a1514 |
| Base 15 | 55c115 | 56e815 |
| Base 16 | 470516 | 480b16 |