Compare 161221 vs 161387
| Property | 161221 | 161387 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1612211 | 1613871 |
| Prime factorization | 161221 | 161387 |
| Divisors count | 2 | 2 |
| Divisors | 1, 161221 | 1, 161387 |
| Number of properties | 5 | 4 |
| Additive primes | 6065th | |
| Chen primes | 6309th | |
| Harmonic primes | 5548th | |
| Isolated primes | 11163rd | 11175th |
| Lucky primes | 1908th | |
| Primes | 14786th | 14800th |
| Pythagorean primes | 7376th | |
| Roman numberals | ||
| Base 2 | 1001110101110001012 | 1001110110011010112 |
| Base 3 | 220120110113 | 220121010223 |
| Base 4 | 2131130114 | 2131212234 |
| Base 5 | 201243415 | 201310225 |
| Base 6 | 32422216 | 32430556 |
| Base 7 | 12410147 | 12413427 |
| Base 8 | 4727058 | 4731538 |
| Base 9 | 2651349 | 2653389 |
| Base 10 | 16122110 | 16138710 |
| Base 11 | 10014511 | 10028611 |
| Base 12 | 7937112 | 7948b12 |
| Base 13 | 584c813 | 585c513 |
| Base 14 | 42a7b14 | 42b5914 |
| Base 15 | 32b8115 | 32c4215 |
| Base 16 | 275c516 | 2766b16 |