Compare 18401 vs 18409
| Property | 18401 | 18409 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 184011 | 411 × 4491 |
| Prime factorization | 18401 | 41 × 449 |
| Divisors count | 2 | 4 |
| Divisors | 1, 18401 | 1, 41, 449, 18409 |
| Number of properties | 5 | 1 |
| Cousin primes (2nd member) | 329th | |
| Happy primes | 360th | |
| Isolated primes | 1463rd | |
| Primes | 2108th | |
| Pythagorean primes | 1043rd | |
| Semiprimes | 4684th | |
| Roman numberals | ||
| Base 2 | 1000111111000012 | 1000111111010012 |
| Base 3 | 2210201123 | 2210202113 |
| Base 4 | 101332014 | 101332214 |
| Base 5 | 10421015 | 10421145 |
| Base 6 | 2211056 | 2211216 |
| Base 7 | 1044357 | 1044467 |
| Base 8 | 437418 | 437518 |
| Base 9 | 272159 | 272249 |
| Base 10 | 1840110 | 1840910 |
| Base 11 | 1290911 | 1291611 |
| Base 12 | a79512 | a7a112 |
| Base 13 | 84b613 | 84c113 |
| Base 14 | 69c514 | 69cd14 |
| Base 15 | 56bb15 | 56c415 |
| Base 16 | 47e116 | 47e916 |