The Number

21506

Twenty-One Thousand Five Hundred and Six

In Base 22 Duovigesimal Is

209c22

The numbers with a 22 subscript use Base 22 Duovigesimal 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
209922
Twenty-One Thousand Five Hundred and Three in Base 22 Duovigesimal
21504
209a22
Twenty-One Thousand Five Hundred and Four in Base 22 Duovigesimal
21505
209b22
Twenty-One Thousand Five Hundred and Five in Base 22 Duovigesimal
21507
209d22
Twenty-One Thousand Five Hundred and Seven in Base 22 Duovigesimal
21508
209e22
Twenty-One Thousand Five Hundred and Eight in Base 22 Duovigesimal
21509
209f22
Twenty-One Thousand Five Hundred and Nine in Base 22 Duovigesimal

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.

0.000aje062eh59f222

The reciprocal of 21506 in Base 22 Duovigesimal.

Palindrome?

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

The number 209c22 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 22 Duovigesimal

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
222
Two in Base 22 Duovigesimal
10753
104h22
Ten Thousand Seven Hundred and Fifty-Three in Base 22 Duovigesimal

Prime Factorization

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

2221 · 104h221 = 209c22

Base Conversions

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