The Number

81000

Eighty-One Thousand

In Base 31 Untrigesimal Is

2m8s31

The numbers with a 31 subscript use Base 31 Untrigesimal notation.

For more familiar numbers: See Eighty-One Thousand in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

80997
2m8p31
Eighty Thousand Nine Hundred and Ninety-Seven in Base 31 Untrigesimal
80998
2m8q31
Eighty Thousand Nine Hundred and Ninety-Eight in Base 31 Untrigesimal
80999
2m8r31
Eighty Thousand Nine Hundred and Ninety-Nine in Base 31 Untrigesimal
81001
2m8t31
Eighty-One Thousand and One in Base 31 Untrigesimal
81002
2m8u31
Eighty-One Thousand and Two in Base 31 Untrigesimal
81003
2m9031
Eighty-One Thousand and Three in Base 31 Untrigesimal

Scientific Notation

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

8.1000e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000bcdprucfj2431

The reciprocal of 81000 in Base 31 Untrigesimal.

Palindrome?

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

The number 2m8s31 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 is a composite number with 80 total factors (including 1 and itself).   See primes in Base 31 Untrigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand is a composite number with 80 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 has the following 3 prime factors:

2
231
Two in Base 31 Untrigesimal
3
331
Three in Base 31 Untrigesimal
5
531
Five in Base 31 Untrigesimal

Prime Factorization

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

2313 · 3314 · 5313 = 2m8s31

Base Conversions

The number eighty-one thousand in 35 different bases