Nearby Numbers

Positive, nonzero integers within three units

21927

Twenty-One Thousand Nine Hundred and Twenty-Seven

21928

Twenty-One Thousand Nine Hundred and Twenty-Eight

21929

Twenty-One Thousand Nine Hundred and Twenty-Nine

21931

Twenty-One Thousand Nine Hundred and Thirty-One

21932

Twenty-One Thousand Nine Hundred and Thirty-Two

21933

Twenty-One Thousand Nine Hundred and Thirty-Three

Scientific Notation

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

2.1930e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000045599635202918376

The reciprocal of 21930.

Palindrome?

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

The number 21930 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 thirty 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.

Twenty-one thousand nine hundred and thirty is a composite number with 32 total factors (including 1 and itself).

Prime Factors

2

Two

3

Three

5

Five

17

Seventeen

43

Forty-Three

Prime Factorization

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

21 · 31 · 51 · 171 · 431 = 21930

Base Conversions

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