Compare 19109 vs 19121
| Property | 19109 | 19121 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 971 × 1971 | 191211 |
| Prime factorization | 97 × 197 | 19121 |
| Divisors count | 4 | 2 |
| Divisors | 1, 97, 197, 19109 | 1, 19121 |
| Number of properties | 1 | 5 |
| Chen primes | 1077th | |
| Isolated primes | 1515th | |
| Primes | 2170th | |
| Pythagorean primes | 1076th | |
| Semiprimes | 4876th | |
| Ulam primes | 157th | |
| Roman numberals | ||
| Base 2 | 1001010101001012 | 1001010101100012 |
| Base 3 | 2220122023 | 2220200123 |
| Base 4 | 102222114 | 102223014 |
| Base 5 | 11024145 | 11024415 |
| Base 6 | 2242456 | 2243056 |
| Base 7 | 1064667 | 1065147 |
| Base 8 | 452458 | 452618 |
| Base 9 | 281829 | 282059 |
| Base 10 | 1910910 | 1912110 |
| Base 11 | 133a211 | 1340311 |
| Base 12 | b08512 | b09512 |
| Base 13 | 890c13 | 891b13 |
| Base 14 | 6d6d14 | 6d7b14 |
| Base 15 | 59de15 | 59eb15 |
| Base 16 | 4aa516 | 4ab116 |