Compare 19861 vs 19889
| Property | 19861 | 19889 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198611 | 198891 |
| Prime factorization | 19861 | 19889 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19861 | 1, 19889 |
| Number of properties | 5 | 8 |
| Chen primes | 1106th | |
| Good primes | 255th | |
| Happy primes | 374th | |
| Harmonic primes | 814th | |
| Isolated primes | 1570th | |
| Lucky primes | 365th | |
| Primes | 2247th | 2249th |
| Pythagorean primes | 1117th | 1118th |
| Sexy primes (1st member) | 690th | |
| Sophie germain primes | 323rd | |
| Twin primes (1st member) | 340th | |
| Roman numberals | ||
| Base 2 | 1001101100101012 | 1001101101100012 |
| Base 3 | 10000201213 | 10000211223 |
| Base 4 | 103121114 | 103123014 |
| Base 5 | 11134215 | 11140245 |
| Base 6 | 2315416 | 2320256 |
| Base 7 | 1116227 | 1116627 |
| Base 8 | 466258 | 466618 |
| Base 9 | 302179 | 302489 |
| Base 10 | 1986110 | 1988910 |
| Base 11 | 13a1611 | 13a4111 |
| Base 12 | b5b112 | b61512 |
| Base 13 | 906a13 | 908c13 |
| Base 14 | 734914 | 736914 |
| Base 15 | 5d4115 | 5d5e15 |
| Base 16 | 4d9516 | 4db116 |