Compare 21156 vs 21161
| Property | 21156 | 21161 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 22 × 31 × 411 × 431 | 71 × 30231 |
| Prime factorization | 2 × 2 × 3 × 41 × 43 | 7 × 3023 |
| Divisors count | 24 | 4 |
| Divisors | 1, 2, 3, 4, 6, 12, 41, 43, 82, 86, 123, 129, 164, 172, 246, 258, 492, 516, 1763, 3526, 5289, 7052, 10578, 21156 | 1, 7, 3023, 21161 |
| Number of properties | 0 | 1 |
| Semiprimes | 5364th | |
| Roman numberals | ||
| Base 2 | 1010010101001002 | 1010010101010012 |
| Base 3 | 10020001203 | 10020002023 |
| Base 4 | 110222104 | 110222214 |
| Base 5 | 11341115 | 11341215 |
| Base 6 | 2415406 | 2415456 |
| Base 7 | 1154527 | 1154607 |
| Base 8 | 512448 | 512518 |
| Base 9 | 320169 | 320229 |
| Base 10 | 2115610 | 2116110 |
| Base 11 | 1499311 | 1499811 |
| Base 12 | 102b012 | 102b512 |
| Base 13 | 982513 | 982a13 |
| Base 14 | 79d214 | 79d714 |
| Base 15 | 640615 | 640b15 |
| Base 16 | 52a416 | 52a916 |