The Number

1840

One Thousand Eight Hundred and Forty

Nearby Numbers

Positive, nonzero integers within three units

1837
One Thousand Eight Hundred and Thirty-Seven
1838
One Thousand Eight Hundred and Thirty-Eight
1839
One Thousand Eight Hundred and Thirty-Nine
1841
One Thousand Eight Hundred and Forty-One
1842
One Thousand Eight Hundred and Forty-Two
1843
One Thousand Eight Hundred and Forty-Three

Scientific Notation

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

1.840e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0005434782608695652

The reciprocal of 1840.

Palindrome?

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

The number 1840 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 forty is a composite number with 20 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 forty is a composite number with 20 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 forty has the following 3 prime factors:

2
Two
5
Five
23
Twenty-Three

Prime Factorization

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

24 · 51 · 231 = 1840

Base Conversions

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