The Number

81105

Eighty-One Thousand One Hundred and Five

In Base 11 Undecimal Is

55a3211

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

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

Nearby Numbers

Positive, nonzero integers within three units

81102
55a2a11
Eighty-One Thousand One Hundred and Two in Base 11 Undecimal
81103
55a3011
Eighty-One Thousand One Hundred and Three in Base 11 Undecimal
81104
55a3111
Eighty-One Thousand One Hundred and Four in Base 11 Undecimal
81106
55a3311
Eighty-One Thousand One Hundred and Six in Base 11 Undecimal
81107
55a3411
Eighty-One Thousand One Hundred and Seven in Base 11 Undecimal
81108
55a3511
Eighty-One Thousand One Hundred and Eight in Base 11 Undecimal

Scientific Notation

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

8.1105e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00001a92a8620393a13311

The reciprocal of 81105 in Base 11 Undecimal.

Palindrome?

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

The number 55a3211 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 five is a composite number with 8 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 five is a composite number with 8 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 five has the following 3 prime factors:

3
311
Three in Base 11 Undecimal
5
511
Five in Base 11 Undecimal
5407
407611
Five Thousand Four Hundred and Seven in Base 11 Undecimal

Prime Factorization

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

3111 · 5111 · 4076111 = 55a3211

Base Conversions

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