Compare 161221 vs 161591
| Property | 161221 | 161591 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1612211 | 1615911 |
| Prime factorization | 161221 | 161591 |
| Divisors count | 2 | 2 |
| Divisors | 1, 161221 | 1, 161591 |
| Number of properties | 5 | 6 |
| Additive primes | 6065th | 6075th |
| Chen primes | 6318th | |
| Emirps | 3261st | |
| Harmonic primes | 5552nd | |
| Isolated primes | 11163rd | 11188th |
| Lucky primes | 1908th | |
| Primes | 14786th | 14817th |
| Pythagorean primes | 7376th | |
| Roman numberals | ||
| Base 2 | 1001110101110001012 | 1001110111001101112 |
| Base 3 | 220120110113 | 220121222123 |
| Base 4 | 2131130114 | 2131303134 |
| Base 5 | 201243415 | 201323315 |
| Base 6 | 32422216 | 32440356 |
| Base 7 | 12410147 | 12420537 |
| Base 8 | 4727058 | 4734678 |
| Base 9 | 2651349 | 2655859 |
| Base 10 | 16122110 | 16159110 |
| Base 11 | 10014511 | 10045111 |
| Base 12 | 7937112 | 7961b12 |
| Base 13 | 584c813 | 5872113 |
| Base 14 | 42a7b14 | 42c6314 |
| Base 15 | 32b8115 | 32d2b15 |
| Base 16 | 275c516 | 2773716 |