The Number

81920

Eighty-One Thousand Nine Hundred and Twenty

In Base 20 Vigesimal Is

a4g020

The numbers with a 20 subscript use Base 20 Vigesimal 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
a4fh20
Eighty-One Thousand Nine Hundred and Seventeen in Base 20 Vigesimal
81918
a4fi20
Eighty-One Thousand Nine Hundred and Eightteen in Base 20 Vigesimal
81919
a4fj20
Eighty-One Thousand Nine Hundred and Nineteen in Base 20 Vigesimal
81921
a4g120
Eighty-One Thousand Nine Hundred and Twenty-One in Base 20 Vigesimal
81922
a4g220
Eighty-One Thousand Nine Hundred and Twenty-Two in Base 20 Vigesimal
81923
a4g320
Eighty-One Thousand Nine Hundred and Twenty-Three in Base 20 Vigesimal

Scientific Notation

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

8.1920e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001j1520

The reciprocal of 81920 in Base 20 Vigesimal.

Palindrome?

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

The number a4g020 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 20 Vigesimal

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
220
Two in Base 20 Vigesimal
5
520
Five in Base 20 Vigesimal

Prime Factorization

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

22014 · 5201 = a4g020

Base Conversions

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