Common · Knowledge
Base36
Binary-to-text encoding scheme
Base36 is a binary-to-text encoding that represents binary data in an ASCII string format by translating it into a radix-36 representation. The choice of 36 is convenient in that the digits can be represented using the numerals 0–9 and the letters a-z (the lowercase ISO basic Latin alphabet).
From Wikipedia
Base36 is a binary-to-text encoding that represents binary data in an ASCII string format by translating it into a radix-36 representation. The choice of 36 is convenient in that the digits can be represented using the numerals 0–9 and the letters a-z (the lowercase ISO basic Latin alphabet). Each Base36 digit contains log2(36) ≈ 5.17 bits of information, so six bits is sufficient to represent each digit. Base36 numbers can also be expanded to pairs of senary (base 6) digits.
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ISO basic Latin alphabet
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Positional numeral system using 36 as the radix
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Binary-coded decimal
Class of binary encodings of decimal numbers where each decimal digit is represented by a fixed number of bits, usually four or eight. Special bit patterns are sometimes used for a sign or for other indications