The Number

81105

Eighty-One Thousand One Hundred and Five

In Base 20 Vigesimal Is

a2f520

The numbers with a 20 subscript use Base 20 Vigesimal 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
a2f220
Eighty-One Thousand One Hundred and Two in Base 20 Vigesimal
81103
a2f320
Eighty-One Thousand One Hundred and Three in Base 20 Vigesimal
81104
a2f420
Eighty-One Thousand One Hundred and Four in Base 20 Vigesimal
81106
a2f620
Eighty-One Thousand One Hundred and Six in Base 20 Vigesimal
81107
a2f720
Eighty-One Thousand One Hundred and Seven in Base 20 Vigesimal
81108
a2f820
Eighty-One Thousand One Hundred and Eight in Base 20 Vigesimal

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.

0.0001j92047fej9f720

The reciprocal of 81105 in Base 20 Vigesimal.

Palindrome?

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

The number a2f520 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 20 Vigesimal

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
320
Three in Base 20 Vigesimal
5
520
Five in Base 20 Vigesimal
5407
da720
Five Thousand Four Hundred and Seven in Base 20 Vigesimal

Prime Factorization

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

3201 · 5201 · da7201 = a2f520

Base Conversions

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