Compare 221621 vs 222149
| Property | 221621 | 222149 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2216211 | 2221491 |
| Prime factorization | 221621 | 222149 |
| Divisors count | 2 | 2 |
| Divisors | 1, 221621 | 1, 222149 |
| Number of properties | 7 | 6 |
| Chen primes | 8229th | 8247th |
| Harmonic primes | 7412th | |
| Long primes | 7390th | 7410th |
| Primes | 19745th | 19791st |
| Pythagorean primes | 9852nd | 9876th |
| Sophie germain primes | 2239th | |
| Twin primes (1st member) | 2343rd | 2350th |
| Ulam primes | 1416th | |
| Roman numberals | ||
| Base 2 | 1101100001101101012 | 1101100011110001012 |
| Base 3 | 1020210000123 | 1020212012023 |
| Base 4 | 3120123114 | 3120330114 |
| Base 5 | 240424415 | 241020445 |
| Base 6 | 44300056 | 44322456 |
| Base 7 | 16120617 | 16134447 |
| Base 8 | 6606658 | 6617058 |
| Base 9 | 3670059 | 3676529 |
| Base 10 | 22162110 | 22214910 |
| Base 11 | 14156411 | 1419a411 |
| Base 12 | a830512 | a868512 |
| Base 13 | 79b4a13 | 7a16513 |
| Base 14 | 5aaa114 | 5ad5b14 |
| Base 15 | 459eb15 | 45c4e15 |
| Base 16 | 361b516 | 363c516 |