The Number

21506

Twenty-One Thousand Five Hundred and Six

In Base 4 Quaternary Is

111000024

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

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

Nearby Numbers

Positive, nonzero integers within three units

21503
110333334
Twenty-One Thousand Five Hundred and Three in Base 4 Quaternary
21504
111000004
Twenty-One Thousand Five Hundred and Four in Base 4 Quaternary
21505
111000014
Twenty-One Thousand Five Hundred and Five in Base 4 Quaternary
21507
111000034
Twenty-One Thousand Five Hundred and Seven in Base 4 Quaternary
21508
111000104
Twenty-One Thousand Five Hundred and Eight in Base 4 Quaternary
21509
111000114
Twenty-One Thousand Five Hundred and Nine in Base 4 Quaternary

Scientific Notation

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

2.1506e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00000003003001320300002300233231124

The reciprocal of 21506 in Base 4 Quaternary.

Palindrome?

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

The number 111000024 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 five hundred and six is a composite number with 4 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 five hundred and six is a composite number with 4 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 five hundred and six has the following 2 prime factors:

2
24
Two in Base 4 Quaternary
10753
22200014
Ten Thousand Seven Hundred and Fifty-Three in Base 4 Quaternary

Prime Factorization

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

241 · 222000141 = 111000024

Base Conversions

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