The Number

1890

One Thousand Eight Hundred and Ninety

Nearby Numbers

Positive, nonzero integers within three units

1887
One Thousand Eight Hundred and Eighty-Seven
1888
One Thousand Eight Hundred and Eighty-Eight
1889
One Thousand Eight Hundred and Eighty-Nine
1891
One Thousand Eight Hundred and Ninety-One
1892
One Thousand Eight Hundred and Ninety-Two
1893
One Thousand Eight Hundred and Ninety-Three

Scientific Notation

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

1.890e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0005291005291005291

The reciprocal of 1890.

Palindrome?

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

The number 1890 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 ninety is a composite number with 32 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 ninety is a composite number with 32 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 ninety has the following 4 prime factors:

2
Two
3
Three
5
Five
7
Seven

Prime Factorization

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

21 · 33 · 51 · 71 = 1890

Base Conversions

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