Compare 664415 vs 664421
| Property | 664415 | 664421 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 831 × 16011 | 6644211 |
| Prime factorization | 5 × 83 × 1601 | 664421 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 83, 415, 1601, 8005, 132883, 664415 | 1, 664421 |
| Number of properties | 0 | 8 |
| Additive primes | 21039th | |
| Chen primes | 21084th | |
| Happy primes | 7641st | |
| Isolated primes | 42262nd | |
| Primes | 53899th | |
| Sexy primes (1st member) | 11633rd | |
| Sophie germain primes | 5482nd | |
| Super primes | 5492nd | |
| Roman numberals | ||
| Base 2 | 101000100011010111112 | 101000100011011001012 |
| Base 3 | 10202021012223 | 10202021020123 |
| Base 4 | 22020311334 | 22020312114 |
| Base 5 | 1322301305 | 1322301415 |
| Base 6 | 221235556 | 221240056 |
| Base 7 | 54350337 | 54350427 |
| Base 8 | 24215378 | 24215458 |
| Base 9 | 12223589 | 12223659 |
| Base 10 | 66441510 | 66442110 |
| Base 11 | 41420411 | 41420a11 |
| Base 12 | 2805bb12 | 28060512 |
| Base 13 | 1a355b13 | 1a356413 |
| Base 14 | 1341c314 | 1341c914 |
| Base 15 | d1ce515 | d1ceb15 |
| Base 16 | a235f16 | a236516 |