Compare 19391 vs 19661
| Property | 19391 | 19661 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 193911 | 196611 |
| Prime factorization | 19391 | 19661 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19391 | 1, 19661 |
| Number of properties | 6 | 8 |
| Additive primes | 1019th | 1035th |
| Cousin primes (2nd member) | 339th | |
| Emirps | 615th | |
| Harmonic primes | 804th | |
| Isolated primes | 1533rd | 1555th |
| Long primes | 851st | |
| Palindromic primes | 44th | |
| Primes | 2196th | 2226th |
| Pythagorean primes | 1105th | |
| Sophie germain primes | 316th | 320th |
| Roman numberals | ||
| Base 2 | 1001011101111112 | 1001100110011012 |
| Base 3 | 2221210123 | 2222220123 |
| Base 4 | 102323334 | 103030314 |
| Base 5 | 11100315 | 11121215 |
| Base 6 | 2254356 | 2310056 |
| Base 7 | 1103517 | 1112157 |
| Base 8 | 456778 | 463158 |
| Base 9 | 285359 | 288659 |
| Base 10 | 1939110 | 1966110 |
| Base 11 | 1362911 | 1385411 |
| Base 12 | b27b12 | b46512 |
| Base 13 | 8a9813 | 8c4513 |
| Base 14 | 70d114 | 724514 |
| Base 15 | 5b2b15 | 5c5b15 |
| Base 16 | 4bbf16 | 4ccd16 |