Compare 171991 vs 172001
| Property | 171991 | 172001 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 2931 × 5871 | 1720011 |
| Prime factorization | 293 × 587 | 172001 |
| Divisors count | 4 | 2 |
| Divisors | 1, 293, 587, 171991 | 1, 172001 |
| Number of properties | 1 | 5 |
| Additive primes | 6408th | |
| Emirps | 3519th | |
| Isolated primes | 11873rd | |
| Primes | 15666th | |
| Pythagorean primes | 7811th | |
| Semiprimes | 39212th | |
| Roman numberals | ||
| Base 2 | 1010011111110101112 | 1010011111111000012 |
| Base 3 | 222012210013 | 222012211023 |
| Base 4 | 2213331134 | 2213332014 |
| Base 5 | 210004315 | 210010015 |
| Base 6 | 34041316 | 34041456 |
| Base 7 | 13143017 | 13143147 |
| Base 8 | 5177278 | 5177418 |
| Base 9 | 2818319 | 2818429 |
| Base 10 | 17199110 | 17200110 |
| Base 11 | 10824611 | 10825511 |
| Base 12 | 8364712 | 8365512 |
| Base 13 | 6039113 | 6039b13 |
| Base 14 | 4697114 | 4697b14 |
| Base 15 | 35e6115 | 35e6b15 |
| Base 16 | 29fd716 | 29fe116 |