Compare 19891 vs 20143
| Property | 19891 | 20143 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198911 | 201431 |
| Prime factorization | 19891 | 20143 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19891 | 1, 20143 |
| Number of properties | 4 | 7 |
| Cousin primes (1st member) | 347th | |
| Harmonic primes | 815th | 826th |
| Isolated primes | 1593rd | |
| Long primes | 871st | |
| Palindromic primes | 45th | |
| Primes | 2250th | 2278th |
| Prime triplets (1st member) | 169th | |
| Sexy primes (1st member) | 699th | |
| Twin primes (2nd member) | 340th | |
| Roman numberals | ||
| Base 2 | 1001101101100112 | 1001110101011112 |
| Base 3 | 10000212013 | 10001220013 |
| Base 4 | 103123034 | 103222334 |
| Base 5 | 11140315 | 11210335 |
| Base 6 | 2320316 | 2331316 |
| Base 7 | 1116647 | 1125047 |
| Base 8 | 466638 | 472578 |
| Base 9 | 302519 | 305619 |
| Base 10 | 1989110 | 2014310 |
| Base 11 | 13a4311 | 1415211 |
| Base 12 | b61712 | b7a712 |
| Base 13 | 909113 | 922613 |
| Base 14 | 736b14 | 74ab14 |
| Base 15 | 5d6115 | 5e7d15 |
| Base 16 | 4db316 | 4eaf16 |