Compare 21155 vs 21165
| Property | 21155 | 21165 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 4 |
| Total factors | 2 | 4 |
| Prime factorization | 51 × 42311 | 31 × 51 × 171 × 831 |
| Prime factorization | 5 × 4231 | 3 × 5 × 17 × 83 |
| Divisors count | 4 | 16 |
| Divisors | 1, 5, 4231, 21155 | 1, 3, 5, 15, 17, 51, 83, 85, 249, 255, 415, 1245, 1411, 4233, 7055, 21165 |
| Number of properties | 1 | 0 |
| Semiprimes | 5363rd | |
| Roman numberals | ||
| Base 2 | 1010010101000112 | 1010010101011012 |
| Base 3 | 10020001123 | 10020002203 |
| Base 4 | 110222034 | 110222314 |
| Base 5 | 11341105 | 11341305 |
| Base 6 | 2415356 | 2415536 |
| Base 7 | 1154517 | 1154647 |
| Base 8 | 512438 | 512558 |
| Base 9 | 320159 | 320269 |
| Base 10 | 2115510 | 2116510 |
| Base 11 | 1499211 | 149a111 |
| Base 12 | 102ab12 | 102b912 |
| Base 13 | 982413 | 983113 |
| Base 14 | 79d114 | 79db14 |
| Base 15 | 640515 | 641015 |
| Base 16 | 52a316 | 52ad16 |