Compare 19811 vs 19819
| Property | 19811 | 19819 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 111 × 18011 | 198191 |
| Prime factorization | 11 × 1801 | 19819 |
| Divisors count | 4 | 2 |
| Divisors | 1, 11, 1801, 19811 | 1, 19819 |
| Number of properties | 1 | 6 |
| Chen primes | 1104th | |
| Isolated primes | 1568th | |
| Long primes | 860th | |
| Primes | 2243rd | |
| Semiprimes | 5041st | |
| Sexy primes (2nd member) | 689th | |
| Super primes | 334th | |
| Roman numberals | ||
| Base 2 | 1001101011000112 | 1001101011010112 |
| Base 3 | 10000112023 | 10000120013 |
| Base 4 | 103112034 | 103112234 |
| Base 5 | 11132215 | 11132345 |
| Base 6 | 2314156 | 2314316 |
| Base 7 | 1115217 | 1115327 |
| Base 8 | 465438 | 465538 |
| Base 9 | 301529 | 301619 |
| Base 10 | 1981110 | 1981910 |
| Base 11 | 1398011 | 1398811 |
| Base 12 | b56b12 | b57712 |
| Base 13 | 902c13 | 903713 |
| Base 14 | 731114 | 731914 |
| Base 15 | 5d0b15 | 5d1415 |
| Base 16 | 4d6316 | 4d6b16 |