Q: What is 21 in other base number systems?
A:
| Base | Representation | Base Count |
|---|---|---|
| 2 (Binary) | 101012 | 5 |
| 3 (Ternary) | 2103 | 3 |
| 4 (Quaternary) | 1114 | 3 |
| 5 (Quinary) | 415 | 2 |
| 6 (Senary) | 336 | 2 |
| 7 (Septenary) | 307 | 2 |
| 8 (Octal) | 258 | 2 |
| 9 (Nonary) | 239 | 2 |
| 10 (Decimal) | 2110 | 2 |
| 11 (Undecimal) | 1A11 | 2 |
| 12 (Duodecimal) | 1912 | 2 |
| 13 (Tridecimal) | 1813 | 2 |
| 14 (Tetradecimal) | 1714 | 2 |
| 15 (Pentadecimal) | 1615 | 2 |
| 16 (Hexadecimal) | 1516 | 2 |
| 17 | 1417 | 2 |
| 18 (Octodecimal) | 1318 | 2 |
| 19 | 1219 | 2 |
| 20 (Vigesimal) | 1120 | 2 |
| 21 | 1021 | 2 |
| 22 | L22 | 1 |
| 23 | L23 | 1 |
| 24 (Tetravigesimal) | L24 | 1 |
| 25 (Pentavigesimal) | L25 | 1 |
| 26 (Hexavigesimal) | L26 | 1 |
| 27 (Septemvigesimal) | L27 | 1 |
| 28 (Octovigesimal) | L28 | 1 |
| 29 | L29 | 1 |
| 30 (Trigesimal) | L30 | 1 |
| 31 | L31 | 1 |
| 32 (Duotrigesimal) | L32 | 1 |
| 33 | L33 | 1 |
| 34 | L34 | 1 |
| 35 | L35 | 1 |
| 36 (Hexatrigesimal) | L36 | 1 |
| 64 (Tetrasexagesimal) | MjE= | 4 |