The Number

81081

Eighty-One Thousand and Eighty-One

In Base 11 Undecimal Is

55a1011

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

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

Nearby Numbers

Positive, nonzero integers within three units

81078
55a0811
Eighty-One Thousand and Seventy-Eight in Base 11 Undecimal
81079
55a0911
Eighty-One Thousand and Seventy-Nine in Base 11 Undecimal
81080
55a0a11
Eighty-One Thousand and Eighty in Base 11 Undecimal
81082
55a1111
Eighty-One Thousand and Eighty-Two in Base 11 Undecimal
81083
55a1211
Eighty-One Thousand and Eighty-Three in Base 11 Undecimal
81084
55a1311
Eighty-One Thousand and Eighty-Four in Base 11 Undecimal

Scientific Notation

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

8.1081e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00001a9384250249a5a611

The reciprocal of 81081 in Base 11 Undecimal.

Palindrome?

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

The number 55a1011 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 and eighty-one is a composite number with 40 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 and eighty-one is a composite number with 40 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 and eighty-one has the following 4 prime factors:

3
311
Three in Base 11 Undecimal
7
711
Seven in Base 11 Undecimal
11
1011
Eleven in Base 11 Undecimal
13
1211
Thirteen in Base 11 Undecimal

Prime Factorization

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

3114 · 7111 · 10111 · 12111 = 55a1011

Base Conversions

The number eighty-one thousand and eighty-one in 35 different bases