Compare 397 vs 406
| Property | 397 | 406 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 3971 | 21 × 71 × 291 |
| Prime factorization | 397 | 2 × 7 × 29 |
| Divisors count | 2 | 8 |
| Divisors | 1, 397 | 1, 2, 7, 14, 29, 58, 203, 406 |
| Number of properties | 8 | 0 |
| Additive primes | 45th | |
| Cousin primes (1st member) | 22nd | |
| Cuban primes 1 | 8th | |
| Happy primes | 21st | |
| Isolated primes | 37th | |
| Left-truncatable primes | 31st | |
| Primes | 78th | |
| Pythagorean primes | 37th | |
| Roman numberals | CCCXCVII | CDVI |
| Base 2 | 1100011012 | 1100101102 |
| Base 3 | 1122013 | 1200013 |
| Base 4 | 120314 | 121124 |
| Base 5 | 30425 | 31115 |
| Base 6 | 15016 | 15146 |
| Base 7 | 11057 | 11207 |
| Base 8 | 6158 | 6268 |
| Base 9 | 4819 | 5019 |
| Base 10 | 39710 | 40610 |
| Base 11 | 33111 | 33a11 |
| Base 12 | 29112 | 29a12 |
| Base 13 | 24713 | 25313 |
| Base 14 | 20514 | 21014 |
| Base 15 | 1b715 | 1c115 |
| Base 16 | 18d16 | 19616 |