The Number

21520

Twenty-One Thousand Five Hundred and Twenty

In Base 22 Duovigesimal Is

20a422

The numbers with a 22 subscript use Base 22 Duovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21517
20a122
Twenty-One Thousand Five Hundred and Seventeen in Base 22 Duovigesimal
21518
20a222
Twenty-One Thousand Five Hundred and Eightteen in Base 22 Duovigesimal
21519
20a322
Twenty-One Thousand Five Hundred and Nineteen in Base 22 Duovigesimal
21521
20a522
Twenty-One Thousand Five Hundred and Twenty-One in Base 22 Duovigesimal
21522
20a622
Twenty-One Thousand Five Hundred and Twenty-Two in Base 22 Duovigesimal
21523
20a722
Twenty-One Thousand Five Hundred and Twenty-Three in Base 22 Duovigesimal

Scientific Notation

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

2.1520e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000ajaci2fg3je422

The reciprocal of 21520 in Base 22 Duovigesimal.

Palindrome?

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

The number 20a422 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 twenty is a composite number with 20 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 twenty is a composite number with 20 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 twenty has the following 3 prime factors:

2
222
Two in Base 22 Duovigesimal
5
522
Five in Base 22 Duovigesimal
269
c522
Two Hundred and Sixty-Nine in Base 22 Duovigesimal

Prime Factorization

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

2224 · 5221 · c5221 = 20a422

Base Conversions

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