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2582

2582 is a natural number that follows 2581 and precedes 2583. In mathematics, it is even and composite, with prime factorization 2 × 1291. Since 1291 is prime, 2582 is a semiprime and has exactly four positive divisors: 1, 2, 1291, and 2582. The sum of its divisors is 3876, and Euler's totient φ(2582) equals 1290. The number is squarefree, as it is the product of two distinct primes. In various numeral systems, 2582 is represented as 101000010110 in binary and A16 in hexadecimal; in Roman numerals it reads MMDLXXXII. The digits sum to 17, giving a digital root of 8.

From a calendrical perspective, 2582 CE would fall in the 26th century; in the Gregorian calendar, 2582

As a four-digit label, 2582 also appears in catalogs, models, and serial numbers across various industries. The

is
not
a
leap
year.
In
astronomy
and
science,
numeric
designations
such
as
2582
are
used
to
identify
sequentially
catalogued
objects,
including
minor
planets
and
other
celestial
bodies.
number’s
arithmetic
properties—being
a
product
of
two
distinct
primes
and
having
a
small
set
of
divisors—make
it
a
typical
example
of
a
semiprime
in
introductory
number
theory
discussions.