The Number

81039

Eighty-One Thousand and Thirty-Nine

In Base 21 Unovigesimal Is

8fg021

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

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

Nearby Numbers

Positive, nonzero integers within three units

81036
8ffi21
Eighty-One Thousand and Thirty-Six in Base 21 Unovigesimal
81037
8ffj21
Eighty-One Thousand and Thirty-Seven in Base 21 Unovigesimal
81038
8ffk21
Eighty-One Thousand and Thirty-Eight in Base 21 Unovigesimal
81040
8fg121
Eighty-One Thousand and Forty in Base 21 Unovigesimal
81041
8fg221
Eighty-One Thousand and Forty-One in Base 21 Unovigesimal
81042
8fg321
Eighty-One Thousand and Forty-Two in Base 21 Unovigesimal

Scientific Notation

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

8.1039e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0002886k388ik31321

The reciprocal of 81039 in Base 21 Unovigesimal.

Palindrome?

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

The number 8fg021 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 and thirty-nine is a composite number with 16 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 and thirty-nine is a composite number with 16 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 and thirty-nine has the following 4 prime factors:

3
321
Three in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
17
h21
Seventeen in Base 21 Unovigesimal
227
ah21
Two Hundred and Twenty-Seven in Base 21 Unovigesimal

Prime Factorization

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

3211 · 7211 · h211 · ah211 = 8fg021

Base Conversions

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