The Number

21969

Twenty-One Thousand Nine Hundred and Sixty-Nine

In Base 21 Unovigesimal Is

27h321

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21966
27h021
Twenty-One Thousand Nine Hundred and Sixty-Six in Base 21 Unovigesimal
21967
27h121
Twenty-One Thousand Nine Hundred and Sixty-Seven in Base 21 Unovigesimal
21968
27h221
Twenty-One Thousand Nine Hundred and Sixty-Eight in Base 21 Unovigesimal
21970
27h421
Twenty-One Thousand Nine Hundred and Seventy in Base 21 Unovigesimal
21971
27h521
Twenty-One Thousand Nine Hundred and Seventy-One in Base 21 Unovigesimal
21972
27h621
Twenty-One Thousand Nine Hundred and Seventy-Two in Base 21 Unovigesimal

Scientific Notation

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

2.1969e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0008hik3hc205g8d21

The reciprocal of 21969 in Base 21 Unovigesimal.

Palindrome?

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

The number 27h321 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 nine hundred and sixty-nine is a composite number with 6 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and sixty-nine is a composite number with 6 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 nine hundred and sixty-nine has the following 2 prime factors:

3
321
Three in Base 21 Unovigesimal
2441
5b521
Two Thousand Four Hundred and Forty-One in Base 21 Unovigesimal

Prime Factorization

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

3212 · 5b5211 = 27h321

Base Conversions

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