Compare 18240 vs 18251
| Property | 18240 | 18251 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 9 | 1 |
| Prime factorization | 26 × 31 × 51 × 191 | 182511 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 19 | 18251 |
| Divisors count | 56 | 2 |
| Divisors | 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 152, 160, 190, 192, 228, 240, 285, 304, 320, 380, 456, 480, 570, 608, 760, 912, 960, 1140, 1216, 1520, 1824, 2280, 3040, 3648, 4560, 6080, 9120, 18240 | 1, 18251 |
| Number of properties | 0 | 9 |
| Additive primes | 983rd | |
| Chen primes | 1036th | |
| Harmonic primes | 758th | |
| Long primes | 802nd | |
| Primes | 2091st | |
| Prime triplets (1st member) | 158th | |
| Sexy primes (1st member) | 646th | |
| Twin primes (1st member) | 321st | |
| Ulam primes | 154th | |
| Roman numberals | ||
| Base 2 | 1000111010000002 | 1000111010010112 |
| Base 3 | 2210001203 | 2210002223 |
| Base 4 | 101310004 | 101310234 |
| Base 5 | 10404305 | 10410015 |
| Base 6 | 2202406 | 2202556 |
| Base 7 | 1041157 | 1041327 |
| Base 8 | 435008 | 435138 |
| Base 9 | 270169 | 270289 |
| Base 10 | 1824010 | 1825110 |
| Base 11 | 1278211 | 1279211 |
| Base 12 | a68012 | a68b12 |
| Base 13 | 83c113 | 83cc13 |
| Base 14 | 690c14 | 691914 |
| Base 15 | 561015 | 561b15 |
| Base 16 | 474016 | 474b16 |