Compare 1861 vs 1987
Property | 1861 | 1987 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 18611 | 19871 |
Prime factorization | 1861 | 1987 |
Divisors count | 2 | 2 |
Divisors | 1, 1861 | 1, 1987 |
Number of properties | 10 | 6 |
Centered square primes | 15th | |
Good primes | 58th | 62nd |
Harmonic primes | 103rd | |
Isolated primes | 173rd | 181st |
Long primes | 112th | |
Lucky primes | 70th | |
Primes | 284th | 300th |
Pythagorean primes | 137th | |
Sexy primes (1st member) | 120th | 127th |
Sexy prime quadrupletss (1st member) | 12th | |
Sexy prime triplets (1st member) | 47th | 50th |
Roman numberals | MDCCCLXI | MCMLXXXVII |
Base 2 | 111010001012 | 111110000112 |
Base 3 | 21122213 | 22011213 |
Base 4 | 1310114 | 1330034 |
Base 5 | 244215 | 304225 |
Base 6 | 123416 | 131116 |
Base 7 | 52667 | 55367 |
Base 8 | 35058 | 37038 |
Base 9 | 24879 | 26479 |
Base 10 | 186110 | 198710 |
Base 11 | 144211 | 154711 |
Base 12 | 10b112 | 119712 |
Base 13 | b0213 | b9b13 |
Base 14 | 96d14 | a1d14 |
Base 15 | 84115 | 8c715 |
Base 16 | 74516 | 7c316 |