Writing Non-Decimal Numbers; Reference - HP 50g User Manual

Writing non-decimal numbers

Numbers in non-decimal systems, referred to as binary integers, are written
preceded by the # symbol ( „â ) in the calculator. To select the current
base to be used for binary integers, choose either HEX (adecimal), DEC
(imal), OCT (al), or BIN (ary) in the BASE menu. For example, if
selected, binary integers will be a hexadecimal numbers, e.g., #53,
#A5B, etc. As different systems are selected, the numbers will be
automatically converted to the new current base.
To write a number in a particular system, start the number with # and end
with either h (hexadecimal), d (decimal), o (octal), or b (binary), examples:
HEX
OCT

Reference

For additional details on numbers from different bases see Chapter 19 in
the calculator's user's guide.
DEC
BIN
is
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