Compare 397 vs 547
| Property | 397 | 547 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3971 | 5471 |
| Prime factorization | 397 | 547 |
| Divisors count | 2 | 2 |
| Divisors | 1, 397 | 1, 547 |
| Number of properties | 8 | 8 |
| Additive primes | 45th | |
| Centered heptagonal primes | 5th | |
| Cousin primes (1st member) | 22nd | |
| Cuban primes 1 | 8th | 9th |
| Happy primes | 21st | |
| Harmonic primes | 42nd | |
| Isolated primes | 37th | 52nd |
| Left-truncatable primes | 31st | 35th |
| Primes | 78th | 101st |
| Pythagorean primes | 37th | |
| Sexy primes (2nd member) | 48th | |
| Super primes | 26th | |
| Roman numberals | CCCXCVII | DXLVII |
| Base 2 | 1100011012 | 10001000112 |
| Base 3 | 1122013 | 2020213 |
| Base 4 | 120314 | 202034 |
| Base 5 | 30425 | 41425 |
| Base 6 | 15016 | 23116 |
| Base 7 | 11057 | 14117 |
| Base 8 | 6158 | 10438 |
| Base 9 | 4819 | 6679 |
| Base 10 | 39710 | 54710 |
| Base 11 | 33111 | 45811 |
| Base 12 | 29112 | 39712 |
| Base 13 | 24713 | 33113 |
| Base 14 | 20514 | 2b114 |
| Base 15 | 1b715 | 26715 |
| Base 16 | 18d16 | 22316 |