Compare 389 vs 487
| Property | 389 | 487 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3891 | 4871 |
| Prime factorization | 389 | 487 |
| Divisors count | 2 | 2 |
| Divisors | 1, 389 | 1, 487 |
| Number of properties | 7 | 10 |
| Additive primes | 54th | |
| Chen primes | 55th | 65th |
| Cousin primes (1st member) | 26th | |
| Emirps | 20th | |
| Happy primes | 23rd | |
| Harmonic primes | 37th | |
| Isolated primes | 36th | 46th |
| Long primes | 29th | 33rd |
| Lucky primes | 26th | |
| Pierpont primes | 16th | |
| Primes | 77th | 93rd |
| Pythagorean primes | 36th | |
| Sexy primes (2nd member) | 42nd | |
| Roman numberals | CCCLXXXIX | CDLXXXVII |
| Base 2 | 1100001012 | 1111001112 |
| Base 3 | 1121023 | 2000013 |
| Base 4 | 120114 | 132134 |
| Base 5 | 30245 | 34225 |
| Base 6 | 14456 | 21316 |
| Base 7 | 10647 | 12647 |
| Base 8 | 6058 | 7478 |
| Base 9 | 4729 | 6019 |
| Base 10 | 38910 | 48710 |
| Base 11 | 32411 | 40311 |
| Base 12 | 28512 | 34712 |
| Base 13 | 23c13 | 2b613 |
| Base 14 | 1db14 | 26b14 |
| Base 15 | 1ae15 | 22715 |
| Base 16 | 18516 | 1e716 |