Compare 401 vs 487
| Property | 401 | 487 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4011 | 4871 |
| Prime factorization | 401 | 487 |
| Divisors count | 2 | 2 |
| Divisors | 1, 401 | 1, 487 |
| Number of properties | 7 | 10 |
| Additive primes | 46th | 54th |
| Chen primes | 56th | 65th |
| Cousin primes (1st member) | 26th | |
| Cousin primes (2nd member) | 22nd | |
| Happy primes | 23rd | |
| Harmonic primes | 37th | |
| Isolated primes | 38th | 46th |
| Long primes | 33rd | |
| Lucky primes | 26th | |
| Pierpont primes | 16th | |
| Primes | 79th | 93rd |
| Pythagorean primes | 38th | |
| Super primes | 22nd | |
| Roman numberals | CDI | CDLXXXVII |
| Base 2 | 1100100012 | 1111001112 |
| Base 3 | 1122123 | 2000013 |
| Base 4 | 121014 | 132134 |
| Base 5 | 31015 | 34225 |
| Base 6 | 15056 | 21316 |
| Base 7 | 11127 | 12647 |
| Base 8 | 6218 | 7478 |
| Base 9 | 4859 | 6019 |
| Base 10 | 40110 | 48710 |
| Base 11 | 33511 | 40311 |
| Base 12 | 29512 | 34712 |
| Base 13 | 24b13 | 2b613 |
| Base 14 | 20914 | 26b14 |
| Base 15 | 1bb15 | 22715 |
| Base 16 | 19116 | 1e716 |