Compare 18131 vs 18181
| Property | 18131 | 18181 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 181311 | 181811 |
| Prime factorization | 18131 | 18181 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18131 | 1, 18181 |
| Number of properties | 6 | 9 |
| Additive primes | 979th | |
| Chen primes | 1032nd | |
| Cousin primes (2nd member) | 324th | |
| Dihedral primes | 8th | |
| Harmonic primes | 754th | |
| Isolated primes | 1444th | |
| Lucky primes | 341st | |
| Palindromic primes | 42nd | |
| Primes | 2078th | 2083rd |
| Prime triplets (2nd member) | 157th | |
| Pythagorean primes | 1029th | |
| Sophie germain primes | 301st | |
| Super primes | 314th | |
| Twin primes (1st member) | 320th | |
| Roman numberals | ||
| Base 2 | 1000110110100112 | 1000111000001012 |
| Base 3 | 2202121123 | 2202211013 |
| Base 4 | 101231034 | 101300114 |
| Base 5 | 10400115 | 10402115 |
| Base 6 | 2155356 | 2201016 |
| Base 7 | 1036017 | 1040027 |
| Base 8 | 433238 | 434058 |
| Base 9 | 267759 | 268419 |
| Base 10 | 1813110 | 1818110 |
| Base 11 | 1269311 | 1272911 |
| Base 12 | a5ab12 | a63112 |
| Base 13 | 833913 | 837713 |
| Base 14 | 687114 | 68a914 |
| Base 15 | 558b15 | 55c115 |
| Base 16 | 46d316 | 470516 |