Compare 397 vs 487
| Property | 397 | 487 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3971 | 4871 |
| Prime factorization | 397 | 487 |
| Divisors count | 2 | 2 |
| Divisors | 1, 397 | 1, 487 |
| Number of properties | 8 | 10 |
| Additive primes | 45th | 54th |
| Chen primes | 65th | |
| Cousin primes (1st member) | 22nd | 26th |
| Cuban primes 1 | 8th | |
| Happy primes | 21st | 23rd |
| Harmonic primes | 37th | |
| Isolated primes | 37th | 46th |
| Left-truncatable primes | 31st | |
| Long primes | 33rd | |
| Lucky primes | 26th | |
| Pierpont primes | 16th | |
| Primes | 78th | 93rd |
| Pythagorean primes | 37th | |
| Roman numberals | CCCXCVII | CDLXXXVII |
| Base 2 | 1100011012 | 1111001112 |
| Base 3 | 1122013 | 2000013 |
| Base 4 | 120314 | 132134 |
| Base 5 | 30425 | 34225 |
| Base 6 | 15016 | 21316 |
| Base 7 | 11057 | 12647 |
| Base 8 | 6158 | 7478 |
| Base 9 | 4819 | 6019 |
| Base 10 | 39710 | 48710 |
| Base 11 | 33111 | 40311 |
| Base 12 | 29112 | 34712 |
| Base 13 | 24713 | 2b613 |
| Base 14 | 20514 | 26b14 |
| Base 15 | 1b715 | 22715 |
| Base 16 | 18d16 | 1e716 |