The Number

81991

Eighty-One Thousand Nine Hundred and Ninety-One

In Base 23 Trivigesimal Is

6gmj23

The numbers with a 23 subscript use Base 23 Trivigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81988
6gmg23
Eighty-One Thousand Nine Hundred and Eighty-Eight in Base 23 Trivigesimal
81989
6gmh23
Eighty-One Thousand Nine Hundred and Eighty-Nine in Base 23 Trivigesimal
81990
6gmi23
Eighty-One Thousand Nine Hundred and Ninety in Base 23 Trivigesimal
81992
6gmk23
Eighty-One Thousand Nine Hundred and Ninety-Two in Base 23 Trivigesimal
81993
6gml23
Eighty-One Thousand Nine Hundred and Ninety-Three in Base 23 Trivigesimal
81994
6gmm23
Eighty-One Thousand Nine Hundred and Ninety-Four in Base 23 Trivigesimal

Scientific Notation

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

8.1991e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00039bbija6a18323

The reciprocal of 81991 in Base 23 Trivigesimal.

Palindrome?

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

The number 6gmj23 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand nine hundred and ninety-one is a composite number with 16 total factors (including 1 and itself).   See primes in Base 23 Trivigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand nine hundred and ninety-one is a composite number with 16 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 eighty-one thousand nine hundred and ninety-one has the following 4 prime factors:

7
723
Seven in Base 23 Trivigesimal
13
d23
Thirteen in Base 23 Trivigesimal
17
h23
Seventeen in Base 23 Trivigesimal
53
2723
Fifty-Three in Base 23 Trivigesimal

Prime Factorization

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

7231 · d231 · h231 · 27231 = 6gmj23

Base Conversions

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