Compare 18131 vs 18142
| Property | 18131 | 18142 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 181311 | 21 × 471 × 1931 |
| Prime factorization | 18131 | 2 × 47 × 193 |
| Divisors count | 2 | 8 |
| Divisors | 1, 18131 | 1, 2, 47, 94, 193, 386, 9071, 18142 |
| Number of properties | 6 | 0 |
| Chen primes | 1032nd | |
| Cousin primes (2nd member) | 324th | |
| Primes | 2078th | |
| Prime triplets (2nd member) | 157th | |
| Sophie germain primes | 301st | |
| Twin primes (1st member) | 320th | |
| Roman numberals | ||
| Base 2 | 1000110110100112 | 1000110110111102 |
| Base 3 | 2202121123 | 2202122213 |
| Base 4 | 101231034 | 101231324 |
| Base 5 | 10400115 | 10400325 |
| Base 6 | 2155356 | 2155546 |
| Base 7 | 1036017 | 1036157 |
| Base 8 | 433238 | 433368 |
| Base 9 | 267759 | 267879 |
| Base 10 | 1813110 | 1814210 |
| Base 11 | 1269311 | 126a311 |
| Base 12 | a5ab12 | a5ba12 |
| Base 13 | 833913 | 834713 |
| Base 14 | 687114 | 687c14 |
| Base 15 | 558b15 | 559715 |
| Base 16 | 46d316 | 46de16 |