The Number

21638

Twenty-One Thousand Six Hundred and Thirty-Eight

In Base 22 Duovigesimal Is

20fc22

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

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

Nearby Numbers

Positive, nonzero integers within three units

21635
20f922
Twenty-One Thousand Six Hundred and Thirty-Five in Base 22 Duovigesimal
21636
20fa22
Twenty-One Thousand Six Hundred and Thirty-Six in Base 22 Duovigesimal
21637
20fb22
Twenty-One Thousand Six Hundred and Thirty-Seven in Base 22 Duovigesimal
21639
20fd22
Twenty-One Thousand Six Hundred and Thirty-Nine in Base 22 Duovigesimal
21640
20fe22
Twenty-One Thousand Six Hundred and Forty in Base 22 Duovigesimal
21641
20ff22
Twenty-One Thousand Six Hundred and Forty-One in Base 22 Duovigesimal

Scientific Notation

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

2.1638e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000ai3ig192llf222

The reciprocal of 21638 in Base 22 Duovigesimal.

Palindrome?

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

The number 20fc22 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 six hundred and thirty-eight 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 six hundred and thirty-eight 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 six hundred and thirty-eight has the following 3 prime factors:

2
222
Two in Base 22 Duovigesimal
31
1922
Thirty-One in Base 22 Duovigesimal
349
fj22
Three Hundred and Forty-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

2221 · 19221 · fj221 = 20fc22

Base Conversions

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