The Number

81971

Eighty-One Thousand Nine Hundred and Seventy-One

In Base 13 Tridecimal Is

2b40613

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

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

Nearby Numbers

Positive, nonzero integers within three units

81968
2b40313
Eighty-One Thousand Nine Hundred and Sixty-Eight in Base 13 Tridecimal
81969
2b40413
Eighty-One Thousand Nine Hundred and Sixty-Nine in Base 13 Tridecimal
81970
2b40513
Eighty-One Thousand Nine Hundred and Seventy in Base 13 Tridecimal
81972
2b40713
Eighty-One Thousand Nine Hundred and Seventy-Two in Base 13 Tridecimal
81973
2b40813
Eighty-One Thousand Nine Hundred and Seventy-Three in Base 13 Tridecimal
81974
2b40913
Eighty-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.

8.1971e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000046b65bb94a2cc4a13

The reciprocal of 81971 in Base 13 Tridecimal.

Palindrome?

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

The number 2b40613 is not a palindrome.

A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Eighty-one thousand nine hundred and seventy-one is the 8016th prime number.   See primes in Base 13 Tridecimal

Not A Composite

Composites have more than just these two factors.

Eighty-One Thousand Nine Hundred and Seventy-One is not a composite number because it has exactly two factors: One and Eighty-One Thousand Nine Hundred and Seventy-One

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number eighty-one thousand nine hundred and seventy-one has the following 1 prime factor:

81971
2b40613
Eighty-One Thousand Nine Hundred and Seventy-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

2b406131 = 2b40613

Base Conversions

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