The Number

81481

Eighty-One Thousand Four Hundred and Eighty-One

In Base 21 Unovigesimal Is

8gg121

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81478
8gfj21
Eighty-One Thousand Four Hundred and Seventy-Eight in Base 21 Unovigesimal
81479
8gfk21
Eighty-One Thousand Four Hundred and Seventy-Nine in Base 21 Unovigesimal
81480
8gg021
Eighty-One Thousand Four Hundred and Eighty in Base 21 Unovigesimal
81482
8gg221
Eighty-One Thousand Four Hundred and Eighty-Two in Base 21 Unovigesimal
81483
8gg321
Eighty-One Thousand Four Hundred and Eighty-Three in Base 21 Unovigesimal
81484
8gg421
Eighty-One Thousand Four Hundred and Eighty-Four in Base 21 Unovigesimal

Scientific Notation

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

8.1481e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000282c87kh921ej21

The reciprocal of 81481 in Base 21 Unovigesimal.

Palindrome?

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

The number 8gg121 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 four hundred and eighty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand four hundred and eighty-one is a composite number with 4 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 four hundred and eighty-one has the following 2 prime factors:

17
h21
Seventeen in Base 21 Unovigesimal
4793
ai521
Four Thousand Seven Hundred and Ninety-Three in Base 21 Unovigesimal

Prime Factorization

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

h211 · ai5211 = 8gg121

Base Conversions

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