The Number

81000

Eighty-One Thousand

In Base 11 Undecimal Is

5594711

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

80997
5594411
Eighty Thousand Nine Hundred and Ninety-Seven in Base 11 Undecimal
80998
5594511
Eighty Thousand Nine Hundred and Ninety-Eight in Base 11 Undecimal
80999
5594611
Eighty Thousand Nine Hundred and Ninety-Nine in Base 11 Undecimal
81001
5594811
Eighty-One Thousand and One in Base 11 Undecimal
81002
5594911
Eighty-One Thousand and Two in Base 11 Undecimal
81003
5594a11
Eighty-One Thousand and Three in Base 11 Undecimal

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.

0.00001a9645133845724511

The reciprocal of 81000 in Base 11 Undecimal.

Palindrome?

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

The number 5594711 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 11 Undecimal

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
211
Two in Base 11 Undecimal
3
311
Three in Base 11 Undecimal
5
511
Five in Base 11 Undecimal

Prime Factorization

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

2113 · 3114 · 5113 = 5594711

Base Conversions

The number eighty-one thousand in 35 different bases