Compare 664243 vs 664421
| Property | 664243 | 664421 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6642431 | 6644211 |
| Prime factorization | 664243 | 664421 |
| Divisors count | 2 | 2 |
| Divisors | 1, 664243 | 1, 664421 |
| Number of properties | 3 | 8 |
| Additive primes | 21039th | |
| Chen primes | 21084th | |
| Happy primes | 7641st | |
| Isolated primes | 42254th | 42262nd |
| Primes | 53887th | 53899th |
| Sexy primes (1st member) | 11633rd | |
| Sophie germain primes | 5482nd | |
| Super primes | 5489th | 5492nd |
| Roman numberals | ||
| Base 2 | 101000100010101100112 | 101000100011011001012 |
| Base 3 | 10202020111213 | 10202021020123 |
| Base 4 | 22020223034 | 22020312114 |
| Base 5 | 1322234335 | 1322301415 |
| Base 6 | 221231116 | 221240056 |
| Base 7 | 54343667 | 54350427 |
| Base 8 | 24212638 | 24215458 |
| Base 9 | 12221479 | 12223659 |
| Base 10 | 66424310 | 66442110 |
| Base 11 | 41406811 | 41420a11 |
| Base 12 | 28049712 | 28060512 |
| Base 13 | 1a345813 | 1a356413 |
| Base 14 | 1340dd14 | 1341c914 |
| Base 15 | d1c2d15 | d1ceb15 |
| Base 16 | a22b316 | a236516 |