Compare 81239 vs 81281
| Property | 81239 | 81281 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 812391 | 812811 |
| Prime factorization | 81239 | 81281 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81239 | 1, 81281 |
| Number of properties | 5 | 7 |
| Additive primes | 3306th | |
| Centered decagonal primes | 61st | |
| Chen primes | 3596th | 3597th |
| Harmonic primes | 3002nd | |
| Isolated primes | 5905th | |
| Primes | 7952nd | 7953rd |
| Pythagorean primes | 3963rd | |
| Sexy primes (2nd member) | 2067th | |
| Sophie germain primes | 988th | |
| Twin primes (1st member) | 1025th | |
| Roman numberals | ||
| Base 2 | 100111101010101112 | 100111101100000012 |
| Base 3 | 110101022123 | 110101111023 |
| Base 4 | 1033111134 | 1033120014 |
| Base 5 | 100444245 | 101001115 |
| Base 6 | 14240356 | 14241456 |
| Base 7 | 4555647 | 4556547 |
| Base 8 | 2365278 | 2366018 |
| Base 9 | 1333859 | 1334429 |
| Base 10 | 8123910 | 8128110 |
| Base 11 | 5604411 | 5608211 |
| Base 12 | 3b01b12 | 3b05512 |
| Base 13 | 2ac9213 | 2acc513 |
| Base 14 | 2186b14 | 2189b14 |
| Base 15 | 1910e15 | 1913b15 |
| Base 16 | 13d5716 | 13d8116 |