The Number

21585

Twenty-One Thousand Five Hundred and Eighty-Five

In Base 22 Duovigesimal Is

20d322

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

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

Nearby Numbers

Positive, nonzero integers within three units

21582
20d022
Twenty-One Thousand Five Hundred and Eighty-Two in Base 22 Duovigesimal
21583
20d122
Twenty-One Thousand Five Hundred and Eighty-Three in Base 22 Duovigesimal
21584
20d222
Twenty-One Thousand Five Hundred and Eighty-Four in Base 22 Duovigesimal
21586
20d422
Twenty-One Thousand Five Hundred and Eighty-Six in Base 22 Duovigesimal
21587
20d522
Twenty-One Thousand Five Hundred and Eighty-Seven in Base 22 Duovigesimal
21588
20d622
Twenty-One Thousand Five Hundred and Eighty-Eight in Base 22 Duovigesimal

Scientific Notation

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

2.1585e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000aigfh47bl9ie22

The reciprocal of 21585 in Base 22 Duovigesimal.

Palindrome?

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

The number 20d322 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 eighty-five is a composite number with 8 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 eighty-five is a composite number with 8 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 eighty-five has the following 3 prime factors:

3
322
Three in Base 22 Duovigesimal
5
522
Five in Base 22 Duovigesimal
1439
2l922
One Thousand Four Hundred and Thirty-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

3221 · 5221 · 2l9221 = 20d322

Base Conversions

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