Compare 81223 vs 81421
| Property | 81223 | 81421 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 812231 | 814211 |
| Prime factorization | 81223 | 81421 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81223 | 1, 81421 |
| Number of properties | 5 | 6 |
| Happy primes | 1234th | 1236th |
| Harmonic primes | 3001st | 3008th |
| Isolated primes | 5903rd | 5916th |
| Left-truncatable primes | 300th | |
| Lucky primes | 1073rd | |
| Primes | 7950th | 7967th |
| Pythagorean primes | 3970th | |
| Roman numberals | ||
| Base 2 | 100111101010001112 | 100111110000011012 |
| Base 3 | 110101020213 | 110102001213 |
| Base 4 | 1033110134 | 1033200314 |
| Base 5 | 100443435 | 101011415 |
| Base 6 | 14240116 | 14245416 |
| Base 7 | 4555427 | 4562447 |
| Base 8 | 2365078 | 2370158 |
| Base 9 | 1333679 | 1336179 |
| Base 10 | 8122310 | 8142110 |
| Base 11 | 5602a11 | 5619a11 |
| Base 12 | 3b00712 | 3b15112 |
| Base 13 | 2ac7c13 | 2b0a213 |
| Base 14 | 2185914 | 2195b14 |
| Base 15 | 190ed15 | 191d115 |
| Base 16 | 13d4716 | 13e0d16 |