Compare 397 vs 404
| Property | 397 | 404 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 3971 | 22 × 1011 |
| Prime factorization | 397 | 2 × 2 × 101 |
| Divisors count | 2 | 6 |
| Divisors | 1, 397 | 1, 2, 4, 101, 202, 404 |
| 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 | CDIV |
| Base 2 | 1100011012 | 1100101002 |
| Base 3 | 1122013 | 1122223 |
| Base 4 | 120314 | 121104 |
| Base 5 | 30425 | 31045 |
| Base 6 | 15016 | 15126 |
| Base 7 | 11057 | 11157 |
| Base 8 | 6158 | 6248 |
| Base 9 | 4819 | 4889 |
| Base 10 | 39710 | 40410 |
| Base 11 | 33111 | 33811 |
| Base 12 | 29112 | 29812 |
| Base 13 | 24713 | 25113 |
| Base 14 | 20514 | 20c14 |
| Base 15 | 1b715 | 1be15 |
| Base 16 | 18d16 | 19416 |