Compare 18191 vs 18199
| Property | 18191 | 18199 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 181911 | 181991 |
| Prime factorization | 18191 | 18199 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18191 | 1, 18199 |
| Number of properties | 4 | 5 |
| Chen primes | 1034th | |
| Emirps | 562nd | 563rd |
| Harmonic primes | 755th | |
| Isolated primes | 1445th | 1446th |
| Primes | 2084th | 2085th |
| Sophie germain primes | 303rd | |
| Roman numberals | ||
| Base 2 | 1000111000011112 | 1000111000101112 |
| Base 3 | 2202212023 | 2202220013 |
| Base 4 | 101300334 | 101301134 |
| Base 5 | 10402315 | 10402445 |
| Base 6 | 2201156 | 2201316 |
| Base 7 | 1040157 | 1040267 |
| Base 8 | 434178 | 434278 |
| Base 9 | 268529 | 268619 |
| Base 10 | 1819110 | 1819910 |
| Base 11 | 1273811 | 1274511 |
| Base 12 | a63b12 | a64712 |
| Base 13 | 838413 | 838c13 |
| Base 14 | 68b514 | 68bd14 |
| Base 15 | 55cb15 | 55d415 |
| Base 16 | 470f16 | 471716 |