Compare 199921 vs 199931
| Property | 199921 | 199931 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1999211 | 1999311 |
| Prime factorization | 199921 | 199931 |
| Divisors count | 2 | 2 |
| Divisors | 1, 199921 | 1, 199931 |
| Number of properties | 5 | 6 |
| Additive primes | 7221st | |
| Chen primes | 7524th | |
| Emirps | 4276th | |
| Harmonic primes | 6757th | |
| Isolated primes | 13662nd | |
| Long primes | 6736th | |
| Primes | 17979th | 17980th |
| Pythagorean primes | 8975th | |
| Twin primes (1st member) | 2160th | |
| Ulam primes | 1289th | |
| Roman numberals | ||
| Base 2 | 1100001100111100012 | 1100001100111110112 |
| Base 3 | 1010110201113 | 1010110202123 |
| Base 4 | 3003033014 | 3003033234 |
| Base 5 | 223441415 | 223442115 |
| Base 6 | 41413216 | 41413356 |
| Base 7 | 14616017 | 14616147 |
| Base 8 | 6063618 | 6063738 |
| Base 9 | 3342149 | 3342259 |
| Base 10 | 19992110 | 19993110 |
| Base 11 | 12722711 | 12723611 |
| Base 12 | 9784112 | 9784b12 |
| Base 13 | 6ccc713 | 7000413 |
| Base 14 | 52c0114 | 52c0b14 |
| Base 15 | 3e38115 | 3e38b15 |
| Base 16 | 30cf116 | 30cfb16 |