Compare 31185 vs 31189
| Property | 31185 | 31189 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 34 × 51 × 71 × 111 | 311891 |
| Prime factorization | 3 × 3 × 3 × 3 × 5 × 7 × 11 | 31189 |
| Divisors count | 40 | 2 |
| Divisors | 1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 81, 99, 105, 135, 165, 189, 231, 297, 315, 385, 405, 495, 567, 693, 891, 945, 1155, 1485, 2079, 2835, 3465, 4455, 6237, 10395, 31185 | 1, 31189 |
| Number of properties | 0 | 9 |
| Cousin primes (1st member) | 479th | |
| Isolated primes | 2398th | |
| Lucky primes | 521st | |
| Primes | 3361st | |
| Pythagorean primes | 1672nd | |
| Sexy primes (2nd member) | 983rd | |
| Sexy prime triplets (3rd member) | 251st | |
| Super primes | 474th | |
| Ulam primes | 256th | |
| Roman numberals | ||
| Base 2 | 1111001110100012 | 1111001110101012 |
| Base 3 | 11202100003 | 11202100113 |
| Base 4 | 132131014 | 132131114 |
| Base 5 | 14442205 | 14442245 |
| Base 6 | 4002136 | 4002216 |
| Base 7 | 1566307 | 1566347 |
| Base 8 | 747218 | 747258 |
| Base 9 | 467009 | 467049 |
| Base 10 | 3118510 | 3118910 |
| Base 11 | 2148011 | 2148411 |
| Base 12 | 1606912 | 1607112 |
| Base 13 | 1126b13 | 1127213 |
| Base 14 | b51714 | b51b14 |
| Base 15 | 939015 | 939415 |
| Base 16 | 79d116 | 79d516 |