Compare 6481 vs 6661
| Property | 6481 | 6661 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 64811 | 66611 |
| Prime factorization | 6481 | 6661 |
| Divisors count | 2 | 2 |
| Divisors | 1, 6481 | 1, 6661 |
| Number of properties | 6 | 11 |
| Additive primes | 422nd | 428th |
| Centered decagonal primes | 23rd | |
| Chen primes | 459th | 469th |
| Happy primes | 147th | |
| Harmonic primes | 312th | |
| Isolated primes | 542nd | |
| Long primes | 329th | |
| Lucky primes | 160th | |
| Primes | 841st | 859th |
| Pythagorean primes | 414th | 423rd |
| Super primes | 149th | |
| Twin primes (2nd member) | 153rd | |
| Ulam primes | 59th | |
| Roman numberals | ||
| Base 2 | 11001010100012 | 11010000001012 |
| Base 3 | 222200013 | 1000102013 |
| Base 4 | 12111014 | 12200114 |
| Base 5 | 2014115 | 2031215 |
| Base 6 | 500016 | 505016 |
| Base 7 | 246167 | 252647 |
| Base 8 | 145218 | 150058 |
| Base 9 | 88019 | 101219 |
| Base 10 | 648110 | 666110 |
| Base 11 | 496211 | 500611 |
| Base 12 | 390112 | 3a3112 |
| Base 13 | 2c4713 | 305513 |
| Base 14 | 250d14 | 25db14 |
| Base 15 | 1dc115 | 1e9115 |
| Base 16 | 195116 | 1a0516 |