Compare 19891 vs 19937
| Property | 19891 | 19937 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198911 | 199371 |
| Prime factorization | 19891 | 19937 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19891 | 1, 19937 |
| Number of properties | 4 | 6 |
| Additive primes | 1047th | |
| Chen primes | 1108th | |
| Harmonic primes | 815th | |
| Isolated primes | 1575th | |
| Palindromic primes | 45th | |
| Primes | 2250th | 2254th |
| Pythagorean primes | 1120th | |
| Twin primes (2nd member) | 340th | |
| Ulam primes | 164th | |
| Roman numberals | ||
| Base 2 | 1001101101100112 | 1001101111000012 |
| Base 3 | 10000212013 | 10001001023 |
| Base 4 | 103123034 | 103132014 |
| Base 5 | 11140315 | 11142225 |
| Base 6 | 2320316 | 2321456 |
| Base 7 | 1116647 | 1120617 |
| Base 8 | 466638 | 467418 |
| Base 9 | 302519 | 303129 |
| Base 10 | 1989110 | 1993710 |
| Base 11 | 13a4311 | 13a8511 |
| Base 12 | b61712 | b65512 |
| Base 13 | 909113 | 90c813 |
| Base 14 | 736b14 | 73a114 |
| Base 15 | 5d6115 | 5d9215 |
| Base 16 | 4db316 | 4de116 |