Compare 21018 vs 21026
| Property | 21018 | 21026 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 21 × 31 × 311 × 1131 | 21 × 105131 |
| Prime factorization | 2 × 3 × 31 × 113 | 2 × 10513 |
| Divisors count | 16 | 4 |
| Divisors | 1, 2, 3, 6, 31, 62, 93, 113, 186, 226, 339, 678, 3503, 7006, 10509, 21018 | 1, 2, 10513, 21026 |
| Number of properties | 0 | 1 |
| Semiprimes | 5332nd | |
| Roman numberals | ||
| Base 2 | 1010010000110102 | 1010010001000102 |
| Base 3 | 10012111103 | 10012112023 |
| Base 4 | 110201224 | 110202024 |
| Base 5 | 11330335 | 11331015 |
| Base 6 | 2411506 | 2412026 |
| Base 7 | 1151647 | 1152057 |
| Base 8 | 510328 | 510428 |
| Base 9 | 317439 | 317529 |
| Base 10 | 2101810 | 2102610 |
| Base 11 | 1487811 | 1488511 |
| Base 12 | 101b612 | 1020212 |
| Base 13 | 974a13 | 975513 |
| Base 14 | 793414 | 793c14 |
| Base 15 | 636315 | 636b15 |
| Base 16 | 521a16 | 522216 |