The Number

21971

Twenty-One Thousand Nine Hundred and Seventy-One

In Base 13 Tridecimal Is

a00113

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

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

Nearby Numbers

Positive, nonzero integers within three units

21968
9ccb13
Twenty-One Thousand Nine Hundred and Sixty-Eight in Base 13 Tridecimal
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
21972
a00213
Twenty-One Thousand Nine Hundred and Seventy-Two 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

Scientific Notation

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

2.1971e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00013b8c7c14539c6113

The reciprocal of 21971 in Base 13 Tridecimal.

Palindrome?

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

The number a00113 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-one is a composite number with 4 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-one is a composite number with 4 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-one has the following 2 prime factors:

127
9a13
One Hundred and Twenty-Seven in Base 13 Tridecimal
173
10413
One Hundred and Seventy-Three in Base 13 Tridecimal

Prime Factorization

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

9a131 · 104131 = a00113

Base Conversions

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