Compare 81223 vs 81899
| Property | 81223 | 81899 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 812231 | 818991 |
| Prime factorization | 81223 | 81899 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81223 | 1, 81899 |
| Number of properties | 5 | 6 |
| Chen primes | 3611th | |
| Happy primes | 1234th | 1240th |
| Harmonic primes | 3001st | |
| Isolated primes | 5903rd | |
| Left-truncatable primes | 300th | |
| Long primes | 3038th | |
| Primes | 7950th | 8007th |
| Safe primes | 573rd | |
| Twin primes (1st member) | 1030th | |
| Roman numberals | ||
| Base 2 | 100111101010001112 | 100111111111010112 |
| Base 3 | 110101020213 | 110111000223 |
| Base 4 | 1033110134 | 1033332234 |
| Base 5 | 100443435 | 101100445 |
| Base 6 | 14240116 | 14310556 |
| Base 7 | 4555427 | 4605267 |
| Base 8 | 2365078 | 2377538 |
| Base 9 | 1333679 | 1343089 |
| Base 10 | 8122310 | 8189910 |
| Base 11 | 5602a11 | 5659411 |
| Base 12 | 3b00712 | 3b48b12 |
| Base 13 | 2ac7c13 | 2b37c13 |
| Base 14 | 2185914 | 21bbd14 |
| Base 15 | 190ed15 | 193ee15 |
| Base 16 | 13d4716 | 13feb16 |