The Number

21638

Twenty-One Thousand Six Hundred and Thirty-Eight

In Base 9 Nonary Is

326129

The numbers with a 9 subscript use Base 9 Nonary 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
326089
Twenty-One Thousand Six Hundred and Thirty-Five in Base 9 Nonary
21636
326109
Twenty-One Thousand Six Hundred and Thirty-Six in Base 9 Nonary
21637
326119
Twenty-One Thousand Six Hundred and Thirty-Seven in Base 9 Nonary
21639
326139
Twenty-One Thousand Six Hundred and Thirty-Nine in Base 9 Nonary
21640
326149
Twenty-One Thousand Six Hundred and Forty in Base 9 Nonary
21641
326159
Twenty-One Thousand Six Hundred and Forty-One in Base 9 Nonary

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.

0.00002650356372514000469

The reciprocal of 21638 in Base 9 Nonary.

Palindrome?

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

The number 326129 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 9 Nonary

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
29
Two in Base 9 Nonary
31
349
Thirty-One in Base 9 Nonary
349
4279
Three Hundred and Forty-Nine in Base 9 Nonary

Prime Factorization

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

291 · 3491 · 42791 = 326129

Base Conversions

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