Compare 19819 vs 19991
| Property | 19819 | 19991 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198191 | 199911 |
| Prime factorization | 19819 | 19991 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19819 | 1, 19991 |
| Number of properties | 6 | 9 |
| Additive primes | 1049th | |
| Chen primes | 1104th | 1111th |
| Harmonic primes | 820th | |
| Isolated primes | 1568th | |
| Long primes | 860th | |
| Palindromic primes | 46th | |
| Primes | 2243rd | 2260th |
| Prime triplets (1st member) | 168th | |
| Sexy primes (1st member) | 693rd | |
| Sexy primes (2nd member) | 689th | |
| Sophie germain primes | 326th | |
| Super primes | 334th | |
| Twin primes (1st member) | 342nd | |
| Roman numberals | ||
| Base 2 | 1001101011010112 | 1001110000101112 |
| Base 3 | 10000120013 | 10001021023 |
| Base 4 | 103112234 | 103201134 |
| Base 5 | 11132345 | 11144315 |
| Base 6 | 2314316 | 2323156 |
| Base 7 | 1115327 | 1121667 |
| Base 8 | 465538 | 470278 |
| Base 9 | 301619 | 303729 |
| Base 10 | 1981910 | 1999110 |
| Base 11 | 1398811 | 1402411 |
| Base 12 | b57712 | b69b12 |
| Base 13 | 903713 | 913a13 |
| Base 14 | 731914 | 73dd14 |
| Base 15 | 5d1415 | 5dcb15 |
| Base 16 | 4d6b16 | 4e1716 |