Compare 8221 vs 8641
| Property | 8221 | 8641 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 82211 | 86411 |
| Prime factorization | 8221 | 8641 |
| Divisors count | 2 | 2 |
| Divisors | 1, 8221 | 1, 8641 |
| Number of properties | 7 | 7 |
| Additive primes | 505th | 524th |
| Chen primes | 554th | |
| Harmonic primes | 394th | |
| Isolated primes | 707th | |
| Lucky primes | 187th | 193rd |
| Primes | 1031st | 1076th |
| Pythagorean primes | 511th | 535th |
| Sexy primes (1st member) | 364th | |
| Super primes | 173rd | |
| Twin primes (2nd member) | 178th | |
| Roman numberals | ||
| Base 2 | 100000000111012 | 100001110000012 |
| Base 3 | 1020211113 | 1022120013 |
| Base 4 | 20001314 | 20130014 |
| Base 5 | 2303415 | 2340315 |
| Base 6 | 1020216 | 1040016 |
| Base 7 | 326537 | 341237 |
| Base 8 | 200358 | 207018 |
| Base 9 | 122449 | 127619 |
| Base 10 | 822110 | 864110 |
| Base 11 | 61a411 | 654611 |
| Base 12 | 491112 | 500112 |
| Base 13 | 398513 | 3c1913 |
| Base 14 | 2dd314 | 321314 |
| Base 15 | 268115 | 286115 |
| Base 16 | 201d16 | 21c116 |