Compare 8641 vs 8821
| Property | 8641 | 8821 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 86411 | 88211 | 
| Prime factorization | 8641 | 8821 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 8641 | 1, 8821 | 
| Number of properties | 7 | 6 | 
| Additive primes | 524th | 535th | 
| Happy primes | 184th | |
| Harmonic primes | 394th | |
| Isolated primes | 707th | |
| Long primes | 427th | |
| Lucky primes | 193rd | |
| Primes | 1076th | 1099th | 
| Pythagorean primes | 535th | 546th | 
| Sexy primes (1st member) | 364th | |
| Twin primes (2nd member) | 186th | |
| Roman numberals | ||
| Base 2 | 100001110000012 | 100010011101012 | 
| Base 3 | 1022120013 | 1100022013 | 
| Base 4 | 20130014 | 20213114 | 
| Base 5 | 2340315 | 2402415 | 
| Base 6 | 1040016 | 1045016 | 
| Base 7 | 341237 | 345017 | 
| Base 8 | 207018 | 211658 | 
| Base 9 | 127619 | 130819 | 
| Base 10 | 864110 | 882110 | 
| Base 11 | 654611 | 669a11 | 
| Base 12 | 500112 | 513112 | 
| Base 13 | 3c1913 | 402713 | 
| Base 14 | 321314 | 330114 | 
| Base 15 | 286115 | 293115 | 
| Base 16 | 21c116 | 227516 |