Enter a number in base 27 below to convert it to base 2 instantly.
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In base 27, each digit position represents a power of 27: the rightmost digit counts individual ones, the next counts groups of 27, the next counts groups of 27×27, and so on — the same place-value idea as base 10, just with 27 distinct digits instead of ten.
Base 2 works the same way: the rightmost digit counts ones, the next counts groups of 2, the next counts groups of 2×2, and so on, using 2 distinct digits.
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| Base 10 | Base 27 | Base 2 |
|---|---|---|
| 1 | 1 | 1 |
| 2 | 2 | 10 |
| 3 | 3 | 11 |
| 4 | 4 | 100 |
| 5 | 5 | 101 |
| 6 | 6 | 110 |
| 7 | 7 | 111 |
| 8 | 8 | 1000 |
| 9 | 9 | 1001 |
| 10 | A | 1010 |
| 11 | B | 1011 |
| 12 | C | 1100 |
| 13 | D | 1101 |
| 14 | E | 1110 |
| 15 | F | 1111 |
| 16 | G | 10000 |
| 17 | H | 10001 |
| 18 | I | 10010 |
| 19 | J | 10011 |
| 20 | K | 10100 |
| 21 | L | 10101 |
| 22 | M | 10110 |
| 23 | N | 10111 |
| 24 | O | 11000 |
| 25 | P | 11001 |
| 26 | Q | 11010 |
| 27 | 10 | 11011 |
| 28 | 11 | 11100 |
| 29 | 12 | 11101 |
| 30 | 13 | 11110 |
| 31 | 14 | 11111 |
| 32 | 15 | 100000 |
| 33 | 16 | 100001 |
| 34 | 17 | 100010 |
| 35 | 18 | 100011 |
| 36 | 19 | 100100 |
| 37 | 1A | 100101 |
| 38 | 1B | 100110 |
| 39 | 1C | 100111 |
| 40 | 1D | 101000 |
| 41 | 1E | 101001 |
| 42 | 1F | 101010 |
| 43 | 1G | 101011 |
| 44 | 1H | 101100 |
| 45 | 1I | 101101 |
| 46 | 1J | 101110 |
| 47 | 1K | 101111 |
| 48 | 1L | 110000 |
| 49 | 1M | 110001 |
| 50 | 1N | 110010 |
| 51 | 1O | 110011 |
| 52 | 1P | 110100 |
| 53 | 1Q | 110101 |
| 54 | 20 | 110110 |
| 55 | 21 | 110111 |
| 56 | 22 | 111000 |
| 57 | 23 | 111001 |
| 58 | 24 | 111010 |
| 59 | 25 | 111011 |
| 60 | 26 | 111100 |
| 61 | 27 | 111101 |
| 62 | 28 | 111110 |
| 63 | 29 | 111111 |
| 64 | 2A | 1000000 |
| 70 | 2G | 1000110 |
| 80 | 2Q | 1010000 |
| 90 | 39 | 1011010 |
| 100 | 3J | 1100100 |
| 200 | 7B | 11001000 |
| 300 | B3 | 100101100 |
| 400 | EM | 110010000 |
| 500 | IE | 111110100 |
| 600 | M6 | 1001011000 |
| 700 | PP | 1010111100 |
| 800 | 12H | 1100100000 |
| 900 | 169 | 1110000100 |
| 1000 | 1A1 | 1111101000 |
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