Compare 668201 vs 668221
| Property | 668201 | 668221 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6682011 | 6682211 |
| Prime factorization | 668201 | 668221 |
| Divisors count | 2 | 2 |
| Divisors | 1, 668201 | 1, 668221 |
| Number of properties | 4 | 2 |
| Additive primes | 21154th | |
| Chen primes | 21181st | |
| Isolated primes | 42487th | |
| Primes | 54183rd | 54186th |
| Twin primes (1st member) | 5850th | |
| Roman numberals | ||
| Base 2 | 101000110010001010012 | 101000110010001111012 |
| Base 3 | 10202211210123 | 10202211212213 |
| Base 4 | 22030202214 | 22030203314 |
| Base 5 | 1323403015 | 1323403415 |
| Base 6 | 221533056 | 221533416 |
| Base 7 | 54520527 | 54521117 |
| Base 8 | 24310518 | 24310758 |
| Base 9 | 12275359 | 12275579 |
| Base 10 | 66820110 | 66822110 |
| Base 11 | 41703611 | 41705411 |
| Base 12 | 28283512 | 28285112 |
| Base 13 | 1a51b113 | 1a51c813 |
| Base 14 | 13572914 | 13574114 |
| Base 15 | d2ebb15 | d2ed115 |
| Base 16 | a322916 | a323d16 |