Compare 18145 vs 18149
| Property | 18145 | 18149 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 191 × 1911 | 181491 |
| Prime factorization | 5 × 19 × 191 | 18149 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 19, 95, 191, 955, 3629, 18145 | 1, 18149 |
| Number of properties | 0 | 10 |
| Additive primes | 978th | |
| Chen primes | 1033rd | |
| Harmonic primes | 753rd | |
| Isolated primes | 1442nd | |
| Primes | 2081st | |
| Pythagorean primes | 1027th | |
| Sexy primes (2nd member) | 642nd | |
| Sophie germain primes | 302nd | |
| Super primes | 313th | |
| Ulam primes | 153rd | |
| Roman numberals | ||
| Base 2 | 1000110111000012 | 1000110111001012 |
| Base 3 | 2202200013 | 2202200123 |
| Base 4 | 101232014 | 101232114 |
| Base 5 | 10400405 | 10400445 |
| Base 6 | 2200016 | 2200056 |
| Base 7 | 1036217 | 1036257 |
| Base 8 | 433418 | 433458 |
| Base 9 | 268019 | 268059 |
| Base 10 | 1814510 | 1814910 |
| Base 11 | 126a611 | 126aa11 |
| Base 12 | a60112 | a60512 |
| Base 13 | 834a13 | 835113 |
| Base 14 | 688114 | 688514 |
| Base 15 | 559a15 | 559e15 |
| Base 16 | 46e116 | 46e516 |