Q: What is 21,781 in other base number systems?
A:
| Base | Representation | Base Count |
|---|---|---|
| 2 (Binary) | 1010101000101012 | 15 |
| 3 (Ternary) | 10022122013 | 10 |
| 4 (Quaternary) | 111101114 | 8 |
| 5 (Quinary) | 11441115 | 7 |
| 6 (Senary) | 2445016 | 6 |
| 7 (Septenary) | 1203347 | 6 |
| 8 (Octal) | 524258 | 5 |
| 9 (Nonary) | 327819 | 5 |
| 10 (Decimal) | 2178110 | 5 |
| 11 (Undecimal) | 1540111 | 5 |
| 12 (Duodecimal) | 1073112 | 5 |
| 13 (Tridecimal) | 9BB613 | 4 |
| 14 (Tetradecimal) | 7D1B14 | 4 |
| 15 (Pentadecimal) | 66C115 | 4 |
| 16 (Hexadecimal) | 551516 | 4 |
| 17 | 476417 | 4 |
| 18 (Octodecimal) | 3D4118 | 4 |
| 19 | 336719 | 4 |
| 20 (Vigesimal) | 2E9120 | 4 |
| 21 | 278421 | 4 |
| 22 | 210122 | 4 |
| 23 | 1I4023 | 4 |
| 24 (Tetravigesimal) | 1DJD24 | 4 |
| 25 (Pentavigesimal) | 19L625 | 4 |
| 26 (Hexavigesimal) | 165J26 | 4 |
| 27 (Septemvigesimal) | 12NJ27 | 4 |
| 28 (Octovigesimal) | RLP28 | 3 |
| 29 | PQ229 | 3 |
| 30 (Trigesimal) | O6130 | 3 |
| 31 | MKJ31 | 3 |
| 32 (Duotrigesimal) | L8L32 | 3 |
| 33 | K0133 | 3 |
| 34 | ISL34 | 3 |
| 35 | HRB35 | 3 |
| 36 (Hexatrigesimal) | GT136 | 3 |
| 64 (Tetrasexagesimal) | MjE3ODE= | 8 |