The Number

21640

Twenty-One Thousand Six Hundred and Forty

In Base 4 Quaternary Is

111020204

The numbers with a 4 subscript use Base 4 Quaternary notation.

For more familiar numbers: See Twenty-One Thousand Six Hundred and Forty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

21637
111020114
Twenty-One Thousand Six Hundred and Thirty-Seven in Base 4 Quaternary
21638
111020124
Twenty-One Thousand Six Hundred and Thirty-Eight in Base 4 Quaternary
21639
111020134
Twenty-One Thousand Six Hundred and Thirty-Nine in Base 4 Quaternary
21641
111020214
Twenty-One Thousand Six Hundred and Forty-One in Base 4 Quaternary
21642
111020224
Twenty-One Thousand Six Hundred and Forty-Two in Base 4 Quaternary
21643
111020234
Twenty-One Thousand Six Hundred and Forty-Three in Base 4 Quaternary

Scientific Notation

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

2.1640e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00000003001310212020330120110220124

The reciprocal of 21640 in Base 4 Quaternary.

Palindrome?

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

The number 111020204 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 six hundred and forty is a composite number with 16 total factors (including 1 and itself).   See primes in Base 4 Quaternary

A Composite

Composites have more than just these two factors.

Twenty-one thousand six hundred and forty is a composite number with 16 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 six hundred and forty has the following 3 prime factors:

2
24
Two in Base 4 Quaternary
5
114
Five in Base 4 Quaternary
541
201314
Five Hundred and Forty-One in Base 4 Quaternary

Prime Factorization

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

243 · 1141 · 2013141 = 111020204

Base Conversions

The number twenty-one thousand six hundred and forty in 35 different bases