The Number

81728

Eighty-One Thousand Seven Hundred and Twenty-Eight

In Base 20 Vigesimal Is

a46820

The numbers with a 20 subscript use Base 20 Vigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81725
a46520
Eighty-One Thousand Seven Hundred and Twenty-Five in Base 20 Vigesimal
81726
a46620
Eighty-One Thousand Seven Hundred and Twenty-Six in Base 20 Vigesimal
81727
a46720
Eighty-One Thousand Seven Hundred and Twenty-Seven in Base 20 Vigesimal
81729
a46920
Eighty-One Thousand Seven Hundred and Twenty-Nine in Base 20 Vigesimal
81730
a46a20
Eighty-One Thousand Seven Hundred and Thirty in Base 20 Vigesimal
81731
a46b20
Eighty-One Thousand Seven Hundred and Thirty-One in Base 20 Vigesimal

Scientific Notation

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

8.1728e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001j31e2h038i4c20

The reciprocal of 81728 in Base 20 Vigesimal.

Palindrome?

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

The number a46820 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 seven hundred and twenty-eight is a composite number with 14 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 seven hundred and twenty-eight is a composite number with 14 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 seven hundred and twenty-eight has the following 2 prime factors:

2
220
Two in Base 20 Vigesimal
1277
33h20
One Thousand Two Hundred and Seventy-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

2206 · 33h201 = a46820

Base Conversions

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