Compare 81373 vs 81421
| Property | 81373 | 81421 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 813731 | 814211 |
| Prime factorization | 81373 | 81421 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81373 | 1, 81421 |
| Number of properties | 4 | 6 |
| Happy primes | 1236th | |
| Harmonic primes | 3008th | |
| Isolated primes | 5916th | |
| Left-truncatable primes | 302nd | |
| Lucky primes | 1073rd | |
| Primes | 7964th | 7967th |
| Pythagorean primes | 3967th | 3970th |
| Twin primes (2nd member) | 1026th | |
| Roman numberals | ||
| Base 2 | 100111101110111012 | 100111110000011012 |
| Base 3 | 110101212113 | 110102001213 |
| Base 4 | 1033131314 | 1033200314 |
| Base 5 | 101004435 | 101011415 |
| Base 6 | 14244216 | 14245416 |
| Base 7 | 4561457 | 4562447 |
| Base 8 | 2367358 | 2370158 |
| Base 9 | 1335549 | 1336179 |
| Base 10 | 8137310 | 8142110 |
| Base 11 | 5615611 | 5619a11 |
| Base 12 | 3b11112 | 3b15112 |
| Base 13 | 2b06613 | 2b0a213 |
| Base 14 | 2192514 | 2195b14 |
| Base 15 | 1919d15 | 191d115 |
| Base 16 | 13ddd16 | 13e0d16 |