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1013

1013 is a natural number that follows 1012 and precedes 1014. In mathematics, it is a prime number, meaning it has no positive divisors other than 1 and itself. It is odd, and quick divisibility tests show it is not divisible by 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, or 31.

Representations in other bases include binary 1111110101, octal 1765, and hexadecimal 3F5. In Roman numerals it

As a calendar year, 1013 CE falls in the early 11th century; historical notes vary by region,

In other contexts, 1013 is used as an identifier in catalogs, such as the numerical designation of

is
MXIII.
The
sum
of
its
decimal
digits
is
5,
and
its
square
is
1,026,169.
and
the
year
is
primarily
of
interest
to
historians
and
chronologists
as
a
period
marker.
a
minor
planet
in
astronomical
catalogs,
or
as
a
numeric
constant
in
computing
and
mathematics.
As
a
prime,
it
is
sometimes
cited
in
examples
illustrating
primality
testing
and
elementary
number
theory.