Compare 1987 vs 2039
| Property | 1987 | 2039 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19871 | 20391 |
| Prime factorization | 1987 | 2039 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1987 | 1, 2039 |
| Number of properties | 6 | 8 |
| Chen primes | 190th | |
| Good primes | 62nd | |
| Happy primes | 56th | |
| Harmonic primes | 115th | |
| Isolated primes | 181st | 186th |
| Lucky primes | 70th | |
| Primes | 300th | 309th |
| Safe primes | 39th | |
| Sexy primes (1st member) | 127th | |
| Sexy prime triplets (1st member) | 50th | |
| Solinas primes | 55th | |
| Sophie germain primes | 62nd | |
| Roman numberals | MCMLXXXVII | MMXXXIX |
| Base 2 | 111110000112 | 111111101112 |
| Base 3 | 22011213 | 22101123 |
| Base 4 | 1330034 | 1333134 |
| Base 5 | 304225 | 311245 |
| Base 6 | 131116 | 132356 |
| Base 7 | 55367 | 56427 |
| Base 8 | 37038 | 37678 |
| Base 9 | 26479 | 27159 |
| Base 10 | 198710 | 203910 |
| Base 11 | 154711 | 159411 |
| Base 12 | 119712 | 121b12 |
| Base 13 | b9b13 | c0b13 |
| Base 14 | a1d14 | a5914 |
| Base 15 | 8c715 | 90e15 |
| Base 16 | 7c316 | 7f716 |