Compare 19889 vs 19991
| Property | 19889 | 19991 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198891 | 199911 |
| Prime factorization | 19889 | 19991 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19889 | 1, 19991 |
| Number of properties | 8 | 9 |
| Additive primes | 1049th | |
| Chen primes | 1106th | 1111th |
| Good primes | 255th | |
| Happy primes | 374th | |
| Harmonic primes | 814th | 820th |
| Palindromic primes | 46th | |
| Primes | 2249th | 2260th |
| Prime triplets (1st member) | 168th | |
| Pythagorean primes | 1118th | |
| Sexy primes (1st member) | 693rd | |
| Sophie germain primes | 323rd | 326th |
| Twin primes (1st member) | 340th | 342nd |
| Roman numberals | ||
| Base 2 | 1001101101100012 | 1001110000101112 |
| Base 3 | 10000211223 | 10001021023 |
| Base 4 | 103123014 | 103201134 |
| Base 5 | 11140245 | 11144315 |
| Base 6 | 2320256 | 2323156 |
| Base 7 | 1116627 | 1121667 |
| Base 8 | 466618 | 470278 |
| Base 9 | 302489 | 303729 |
| Base 10 | 1988910 | 1999110 |
| Base 11 | 13a4111 | 1402411 |
| Base 12 | b61512 | b69b12 |
| Base 13 | 908c13 | 913a13 |
| Base 14 | 736914 | 73dd14 |
| Base 15 | 5d5e15 | 5dcb15 |
| Base 16 | 4db116 | 4e1716 |