The Number

21992

Twenty-One Thousand Nine Hundred and Ninety-Two

Nearby Numbers

Positive, nonzero integers within three units

21989
Twenty-One Thousand Nine Hundred and Eighty-Nine
21990
Twenty-One Thousand Nine Hundred and Ninety
21991
Twenty-One Thousand Nine Hundred and Ninety-One
21993
Twenty-One Thousand Nine Hundred and Ninety-Three
21994
Twenty-One Thousand Nine Hundred and Ninety-Four
21995
Twenty-One Thousand Nine Hundred and Ninety-Five

Scientific Notation

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

2.1992e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000045471080392870135

The reciprocal of 21992.

Palindrome?

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

The number 21992 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand nine hundred and ninety-two is a composite number with 8 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and ninety-two is a composite number with 8 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 twenty-one thousand nine hundred and ninety-two has the following 2 prime factors:

2
Two
2749
Two Thousand Seven Hundred and Forty-Nine

Prime Factorization

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

23 · 27491 = 21992

Base Conversions

The number twenty-one thousand nine hundred and ninety-two in 35 different bases