Compare 19387 vs 19661
| Property | 19387 | 19661 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 193871 | 196611 |
| Prime factorization | 19387 | 19661 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19387 | 1, 19661 |
| Number of properties | 5 | 8 |
| Additive primes | 1035th | |
| Cousin primes (1st member) | 339th | |
| Emirps | 615th | |
| Harmonic primes | 794th | 804th |
| Isolated primes | 1532nd | 1555th |
| Long primes | 851st | |
| Primes | 2195th | 2226th |
| Pythagorean primes | 1105th | |
| Sexy primes (2nd member) | 670th | |
| Sophie germain primes | 320th | |
| Roman numberals | ||
| Base 2 | 1001011101110112 | 1001100110011012 |
| Base 3 | 2221210013 | 2222220123 |
| Base 4 | 102323234 | 103030314 |
| Base 5 | 11100225 | 11121215 |
| Base 6 | 2254316 | 2310056 |
| Base 7 | 1103447 | 1112157 |
| Base 8 | 456738 | 463158 |
| Base 9 | 285319 | 288659 |
| Base 10 | 1938710 | 1966110 |
| Base 11 | 1362511 | 1385411 |
| Base 12 | b27712 | b46512 |
| Base 13 | 8a9413 | 8c4513 |
| Base 14 | 70cb14 | 724514 |
| Base 15 | 5b2715 | 5c5b15 |
| Base 16 | 4bbb16 | 4ccd16 |