The Number

81180

Eighty-One Thousand One Hundred and Eighty

In Base 11 Undecimal Is

55aa011

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

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

Nearby Numbers

Positive, nonzero integers within three units

81177
55a9811
Eighty-One Thousand One Hundred and Seventy-Seven in Base 11 Undecimal
81178
55a9911
Eighty-One Thousand One Hundred and Seventy-Eight in Base 11 Undecimal
81179
55a9a11
Eighty-One Thousand One Hundred and Seventy-Nine in Base 11 Undecimal
81181
55aa111
Eighty-One Thousand One Hundred and Eighty-One in Base 11 Undecimal
81182
55aa211
Eighty-One Thousand One Hundred and Eighty-Two in Base 11 Undecimal
81183
55aa311
Eighty-One Thousand One Hundred and Eighty-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.

8.1180e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00001a905a11a727768911

The reciprocal of 81180 in Base 11 Undecimal.

Palindrome?

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

The number 55aa011 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 one hundred and eighty is a composite number with 72 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 one hundred and eighty is a composite number with 72 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 one hundred and eighty has the following 5 prime factors:

2
211
Two in Base 11 Undecimal
3
311
Three in Base 11 Undecimal
5
511
Five in Base 11 Undecimal
11
1011
Eleven in Base 11 Undecimal
41
3811
Forty-One in Base 11 Undecimal

Prime Factorization

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

2112 · 3112 · 5111 · 10111 · 38111 = 55aa011

Base Conversions

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