Compare 19889 vs 20507
| Property | 19889 | 20507 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198891 | 205071 |
| Prime factorization | 19889 | 20507 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19889 | 1, 20507 |
| Number of properties | 8 | 4 |
| Chen primes | 1106th | 1139th |
| Good primes | 255th | |
| Happy primes | 374th | |
| Harmonic primes | 814th | |
| Primes | 2249th | 2314th |
| Pythagorean primes | 1118th | |
| Safe primes | 194th | |
| Sophie germain primes | 323rd | |
| Twin primes (1st member) | 340th | 349th |
| Roman numberals | ||
| Base 2 | 1001101101100012 | 1010000000110112 |
| Base 3 | 10000211223 | 10010101123 |
| Base 4 | 103123014 | 110001234 |
| Base 5 | 11140245 | 11240125 |
| Base 6 | 2320256 | 2345356 |
| Base 7 | 1116627 | 1135347 |
| Base 8 | 466618 | 500338 |
| Base 9 | 302489 | 311159 |
| Base 10 | 1988910 | 2050710 |
| Base 11 | 13a4111 | 1445311 |
| Base 12 | b61512 | ba4b12 |
| Base 13 | 908c13 | 944613 |
| Base 14 | 736914 | 768b14 |
| Base 15 | 5d5e15 | 612215 |
| Base 16 | 4db116 | 501b16 |