The Number

21816

Twenty-One Thousand Eight Hundred and Sixteen

In Base 4 Quaternary Is

111103204

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

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

Nearby Numbers

Positive, nonzero integers within three units

21813
111103114
Twenty-One Thousand Eight Hundred and Thirteen in Base 4 Quaternary
21814
111103124
Twenty-One Thousand Eight Hundred and Fourteen in Base 4 Quaternary
21815
111103134
Twenty-One Thousand Eight Hundred and Fifteen in Base 4 Quaternary
21817
111103214
Twenty-One Thousand Eight Hundred and Seventeen in Base 4 Quaternary
21818
111103224
Twenty-One Thousand Eight Hundred and Eightteen in Base 4 Quaternary
21819
111103234
Twenty-One Thousand Eight Hundred and Nineteen in Base 4 Quaternary

Scientific Notation

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

2.1816e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00000003000100201122313303302330324

The reciprocal of 21816 in Base 4 Quaternary.

Palindrome?

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

The number 111103204 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 eight hundred and sixteen is a composite number with 32 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 eight hundred and sixteen 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 twenty-one thousand eight hundred and sixteen has the following 3 prime factors:

2
24
Two in Base 4 Quaternary
3
34
Three in Base 4 Quaternary
101
12114
One Hundred and 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 · 343 · 121141 = 111103204

Base Conversions

The number twenty-one thousand eight hundred and sixteen in 35 different bases