The Number

1813

One Thousand Eight Hundred and Thirteen

Nearby Numbers

Positive, nonzero integers within three units

1810
One Thousand Eight Hundred and Ten
1811
One Thousand Eight Hundred and Eleven
1812
One Thousand Eight Hundred and Twelve
1814
One Thousand Eight Hundred and Fourteen
1815
One Thousand Eight Hundred and Fifteen
1816
One Thousand Eight Hundred and Sixteen

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

1.813e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0005515719801434088

The reciprocal of 1813.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 1813 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

One thousand eight hundred and thirteen is a composite number with 6 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

One thousand eight hundred and thirteen is a composite number with 6 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number one thousand eight hundred and thirteen has the following 2 prime factors:

7
Seven
37
Thirty-Seven

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

72 · 371 = 1813

Base Conversions

The number one thousand eight hundred and thirteen in 35 different bases