Compare 81239 vs 81245
| Property | 81239 | 81245 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 812391 | 51 × 162491 |
| Prime factorization | 81239 | 5 × 16249 |
| Divisors count | 2 | 4 |
| Divisors | 1, 81239 | 1, 5, 16249, 81245 |
| Number of properties | 5 | 1 |
| Additive primes | 3306th | |
| Chen primes | 3596th | |
| Isolated primes | 5905th | |
| Primes | 7952nd | |
| Semiprimes | 19192nd | |
| Sexy primes (2nd member) | 2067th | |
| Roman numberals | ||
| Base 2 | 100111101010101112 | 100111101010111012 |
| Base 3 | 110101022123 | 110101100023 |
| Base 4 | 1033111134 | 1033111314 |
| Base 5 | 100444245 | 100444405 |
| Base 6 | 14240356 | 14240456 |
| Base 7 | 4555647 | 4556037 |
| Base 8 | 2365278 | 2365358 |
| Base 9 | 1333859 | 1334029 |
| Base 10 | 8123910 | 8124510 |
| Base 11 | 5604411 | 5604a11 |
| Base 12 | 3b01b12 | 3b02512 |
| Base 13 | 2ac9213 | 2ac9813 |
| Base 14 | 2186b14 | 2187314 |
| Base 15 | 1910e15 | 1911515 |
| Base 16 | 13d5716 | 13d5d16 |