Compare 19889 vs 20681
| Property | 19889 | 20681 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198891 | 206811 |
| Prime factorization | 19889 | 20681 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19889 | 1, 20681 |
| Number of properties | 8 | 5 |
| Additive primes | 1082nd | |
| Chen primes | 1106th | |
| Good primes | 255th | 258th |
| Happy primes | 374th | |
| Harmonic primes | 814th | |
| Isolated primes | 1628th | |
| Primes | 2249th | 2329th |
| Pythagorean primes | 1118th | 1158th |
| Sophie germain primes | 323rd | |
| Twin primes (1st member) | 340th | |
| Roman numberals | ||
| Base 2 | 1001101101100012 | 1010000110010012 |
| Base 3 | 10000211223 | 10011002223 |
| Base 4 | 103123014 | 110030214 |
| Base 5 | 11140245 | 11302115 |
| Base 6 | 2320256 | 2354256 |
| Base 7 | 1116627 | 1142037 |
| Base 8 | 466618 | 503118 |
| Base 9 | 302489 | 313289 |
| Base 10 | 1988910 | 2068110 |
| Base 11 | 13a4111 | 145a111 |
| Base 12 | b61512 | bb7512 |
| Base 13 | 908c13 | 954b13 |
| Base 14 | 736914 | 777314 |
| Base 15 | 5d5e15 | 61db15 |
| Base 16 | 4db116 | 50c916 |