Compare 18128 vs 18131
| Property | 18128 | 18131 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 24 × 111 × 1031 | 181311 |
| Prime factorization | 2 × 2 × 2 × 2 × 11 × 103 | 18131 |
| Divisors count | 20 | 2 |
| Divisors | 1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1133, 1648, 2266, 4532, 9064, 18128 | 1, 18131 |
| Number of properties | 0 | 6 |
| 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 | 1000110110100002 | 1000110110100112 |
| Base 3 | 2202121023 | 2202121123 |
| Base 4 | 101231004 | 101231034 |
| Base 5 | 10400035 | 10400115 |
| Base 6 | 2155326 | 2155356 |
| Base 7 | 1035657 | 1036017 |
| Base 8 | 433208 | 433238 |
| Base 9 | 267729 | 267759 |
| Base 10 | 1812810 | 1813110 |
| Base 11 | 1269011 | 1269311 |
| Base 12 | a5a812 | a5ab12 |
| Base 13 | 833613 | 833913 |
| Base 14 | 686c14 | 687114 |
| Base 15 | 558815 | 558b15 |
| Base 16 | 46d016 | 46d316 |