The Number

21972

Twenty-One Thousand Nine Hundred and Seventy-Two

In Base 13 Tridecimal Is

a00213

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21969
9ccc13
Twenty-One Thousand Nine Hundred and Sixty-Nine in Base 13 Tridecimal
21970
a00013
Twenty-One Thousand Nine Hundred and Seventy in Base 13 Tridecimal
21971
a00113
Twenty-One Thousand Nine Hundred and Seventy-One in Base 13 Tridecimal
21973
a00313
Twenty-One Thousand Nine Hundred and Seventy-Three in Base 13 Tridecimal
21974
a00413
Twenty-One Thousand Nine Hundred and Seventy-Four in Base 13 Tridecimal
21975
a00513
Twenty-One Thousand Nine Hundred and Seventy-Five in Base 13 Tridecimal

Scientific Notation

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

2.1972e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00013b8abc6bba41713

The reciprocal of 21972 in Base 13 Tridecimal.

Palindrome?

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

The number a00213 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 seventy-two is a composite number with 12 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and seventy-two is a composite number with 12 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 seventy-two has the following 3 prime factors:

2
213
Two in Base 13 Tridecimal
3
313
Three in Base 13 Tridecimal
1831
aab13
One Thousand Eight Hundred and Thirty-One in Base 13 Tridecimal

Prime Factorization

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

2132 · 3131 · aab131 = a00213

Base Conversions

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