The Number

81018

Eighty-One Thousand and Eightteen

In Base 11 Undecimal Is

5596311

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

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

Nearby Numbers

Positive, nonzero integers within three units

81015
5596011
Eighty-One Thousand and Fifteen in Base 11 Undecimal
81016
5596111
Eighty-One Thousand and Sixteen in Base 11 Undecimal
81017
5596211
Eighty-One Thousand and Seventeen in Base 11 Undecimal
81019
5596411
Eighty-One Thousand and Nineteen in Base 11 Undecimal
81020
5596511
Eighty-One Thousand and Twenty in Base 11 Undecimal
81021
5596611
Eighty-One Thousand and Twenty-One in Base 11 Undecimal

Scientific Notation

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

8.1018e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00001a958aa803222a4611

The reciprocal of 81018 in Base 11 Undecimal.

Palindrome?

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

The number 5596311 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 eightteen is a composite number with 24 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 eightteen is a composite number with 24 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 eightteen has the following 4 prime factors:

2
211
Two in Base 11 Undecimal
3
311
Three in Base 11 Undecimal
7
711
Seven in Base 11 Undecimal
643
53511
Six Hundred and Forty-Three in Base 11 Undecimal

Prime Factorization

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

2111 · 3112 · 7111 · 535111 = 5596311

Base Conversions

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