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 0âÂÂ9 and the letters a-z (the lowercase ISO basic Latin alphabet).
Each Base36 digit contains of information, so six bits is sufficient to represent each digit. Base36 numbers can also be expanded to pairs of senary (base 6) digits.
Signed 32- and 64-bit integers will only hold at most 6 or 13 base-36 digits, respectively (that many base-36 digits can overflow the 32- and 64-bit integers). For example, the 64-bit signed integer maximum value of "9223372036854775807" is "" in base-36. Similarly, the 32-bit signed integer maximum value of "2147483647" is "" in base-36.
The C standard library since C89 supports base36 numbers via the strtol and strtoul functions
In the Common Lisp standard (ANSI INCITS 226-1994), functions like <code>parse-integer</code> support a radix of 2 to 36.
Java SE supports conversion from/to String to different bases from 2 up to 36. For example, https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#digit-char-int- and https://docs.oracle.com/javase/8/docs/api/java/math/BigInteger.html#BigInteger-java.lang.String-int-
Just like Java, JavaScript also supports conversion from/to String to different bases from 2 up to 36. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toString
PHP, like Java, supports conversion from/to String to different bases from 2 up to 36 using the base_convert function, available since PHP 4.
Go supports conversion to string to different bases from 2 up to 36 using the built-in <code>strconv.FormatInt()</code>, and <code>strconv.FormatUint()</code> functions, and conversions from string encoded in different bases from 2 up to 36 using the built-in <code>strconv.ParseInt()</code>, and <code>strconv.ParseUint()</code> functions.
Python allows conversions of strings from base 2 to base 36.
Raku supports base2 to base36 for all its real numeric types with its builtins: <code>base</code> and <code>parse-base</code>.