Q: What is 81 in other base number systems?
A:
| Base | Representation | Base Count |
|---|---|---|
| 2 (Binary) | 10100012 | 7 |
| 3 (Ternary) | 100003 | 5 |
| 4 (Quaternary) | 11014 | 4 |
| 5 (Quinary) | 3115 | 3 |
| 6 (Senary) | 2136 | 3 |
| 7 (Septenary) | 1447 | 3 |
| 8 (Octal) | 1218 | 3 |
| 9 (Nonary) | 1009 | 3 |
| 10 (Decimal) | 8110 | 2 |
| 11 (Undecimal) | 7411 | 2 |
| 12 (Duodecimal) | 6912 | 2 |
| 13 (Tridecimal) | 6313 | 2 |
| 14 (Tetradecimal) | 5B14 | 2 |
| 15 (Pentadecimal) | 5615 | 2 |
| 16 (Hexadecimal) | 5116 | 2 |
| 17 | 4D17 | 2 |
| 18 (Octodecimal) | 4918 | 2 |
| 19 | 4519 | 2 |
| 20 (Vigesimal) | 4120 | 2 |
| 21 | 3I21 | 2 |
| 22 | 3F22 | 2 |
| 23 | 3C23 | 2 |
| 24 (Tetravigesimal) | 3924 | 2 |
| 25 (Pentavigesimal) | 3625 | 2 |
| 26 (Hexavigesimal) | 3326 | 2 |
| 27 (Septemvigesimal) | 3027 | 2 |
| 28 (Octovigesimal) | 2P28 | 2 |
| 29 | 2N29 | 2 |
| 30 (Trigesimal) | 2L30 | 2 |
| 31 | 2J31 | 2 |
| 32 (Duotrigesimal) | 2H32 | 2 |
| 33 | 2F33 | 2 |
| 34 | 2D34 | 2 |
| 35 | 2B35 | 2 |
| 36 (Hexatrigesimal) | 2936 | 2 |
| 64 (Tetrasexagesimal) | ODE= | 4 |