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1073741824

1073741824 is a decimal integer equal to 2^30. In hexadecimal it is 0x40000000, and in binary it is a 1 followed by 30 zeros. This value is commonly encountered in computing as the exact number of bytes in one gibibyte (GiB), since one GiB equals 2^30 bytes, or 1,073,741,824 bytes. Consequently, 1073741824 bytes is often used as a canonical size for memory and storage capacities in binary-prefixed contexts.

In the distinction between binary and decimal prefixes, 1073741824 bytes is precisely one gibibyte, whereas in

Applications and significance: the value serves as a natural boundary in computer architecture and memory planning

decimal
terms
the
equivalent
size
is
about
1.0737
billion
bytes,
sometimes
referred
to
as
1.073
gigabytes
for
convenience,
though
that
usage
can
be
misleading
in
strict
contexts.
The
term
gibibyte
(GiB)
is
the
correct
binary
unit
for
2^30
bytes,
while
gigabyte
(GB)
typically
denotes
10^9
bytes
in
decimal
measurements.
because
it
is
a
high-power-of-two
multiple
of
the
basic
memory
unit.
It
frequently
appears
when
describing
RAM
capacities,
disk-space
quotas,
cache
sizes,
or
buffer
allocations
in
systems
designed
around
binary
addressing
and
block
sizes.
The
next
higher
binary-scale
unit
is
2^31
bytes
(2,147,483,648),
or
2
GiB.