The Number

81920

Eighty-One Thousand Nine Hundred and Twenty

In Base 12 Duodecimal Is

3b4a812

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81917
3b4a512
Eighty-One Thousand Nine Hundred and Seventeen in Base 12 Duodecimal
81918
3b4a612
Eighty-One Thousand Nine Hundred and Eightteen in Base 12 Duodecimal
81919
3b4a712
Eighty-One Thousand Nine Hundred and Nineteen in Base 12 Duodecimal
81921
3b4a912
Eighty-One Thousand Nine Hundred and Twenty-One in Base 12 Duodecimal
81922
3b4aa12
Eighty-One Thousand Nine Hundred and Twenty-Two in Base 12 Duodecimal
81923
3b4ab12
Eighty-One Thousand Nine Hundred and Twenty-Three in Base 12 Duodecimal

Scientific Notation

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

8.1920e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000030549724972497312

The reciprocal of 81920 in Base 12 Duodecimal.

Palindrome?

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

The number 3b4a812 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 nine hundred and twenty is a composite number with 30 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand nine hundred and twenty is a composite number with 30 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 nine hundred and twenty has the following 2 prime factors:

2
212
Two in Base 12 Duodecimal
5
512
Five in Base 12 Duodecimal

Prime Factorization

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

21214 · 5121 = 3b4a812

Base Conversions

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