Compare 18131 vs 18191
| Property | 18131 | 18191 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 181311 | 181911 |
| Prime factorization | 18131 | 18191 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18131 | 1, 18191 |
| Number of properties | 6 | 4 |
| Chen primes | 1032nd | |
| Cousin primes (2nd member) | 324th | |
| Emirps | 562nd | |
| Isolated primes | 1445th | |
| Primes | 2078th | 2084th |
| Prime triplets (2nd member) | 157th | |
| Sophie germain primes | 301st | 303rd |
| Twin primes (1st member) | 320th | |
| Roman numberals | ||
| Base 2 | 1000110110100112 | 1000111000011112 |
| Base 3 | 2202121123 | 2202212023 |
| Base 4 | 101231034 | 101300334 |
| Base 5 | 10400115 | 10402315 |
| Base 6 | 2155356 | 2201156 |
| Base 7 | 1036017 | 1040157 |
| Base 8 | 433238 | 434178 |
| Base 9 | 267759 | 268529 |
| Base 10 | 1813110 | 1819110 |
| Base 11 | 1269311 | 1273811 |
| Base 12 | a5ab12 | a63b12 |
| Base 13 | 833913 | 838413 |
| Base 14 | 687114 | 68b514 |
| Base 15 | 558b15 | 55cb15 |
| Base 16 | 46d316 | 470f16 |