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Integer and Number Theoretic Functions
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Log
IntegerLength
IntegerExponent
MantissaExponent
IntegerDigits
BitShiftRight
ByteCount
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Bitwise Operations
Integer Functions
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New in 6.0: Number Theory & Integer Functions
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BitLength
BitLength
[
n
]
gives the number of binary bits necessary to represent the integer
n
.
MORE INFORMATION
For positive
n
,
BitLength
[
n
]
is effectively an efficient version of
Floor
[
Log
[2,
n
]]+1
.
For negative
n
it is equivalent to
BitLength
[
BitNot
[
n
]]
.
EXAMPLES
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SEE ALSO
Log
IntegerLength
IntegerExponent
MantissaExponent
IntegerDigits
BitShiftRight
ByteCount
TUTORIALS
Integer and Number Theoretic Functions
MORE ABOUT
Bitwise Operations
Integer Functions
Memory Measurement & Optimization
New in 6.0: Number Theory & Integer Functions
New in 6
© 2008 Wolfram Research, Inc.
EXAMPLES
Basic Examples 
