The Number

81030

Eighty-One Thousand and Thirty

In Base 21 Unovigesimal Is

8ffc21

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

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

Nearby Numbers

Positive, nonzero integers within three units

81027
8ff921
Eighty-One Thousand and Twenty-Seven in Base 21 Unovigesimal
81028
8ffa21
Eighty-One Thousand and Twenty-Eight in Base 21 Unovigesimal
81029
8ffb21
Eighty-One Thousand and Twenty-Nine in Base 21 Unovigesimal
81031
8ffd21
Eighty-One Thousand and Thirty-One in Base 21 Unovigesimal
81032
8ffe21
Eighty-One Thousand and Thirty-Two in Base 21 Unovigesimal
81033
8fff21
Eighty-One Thousand and Thirty-Three in Base 21 Unovigesimal

Scientific Notation

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

8.1030e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0002889900958c7d21

The reciprocal of 81030 in Base 21 Unovigesimal.

Palindrome?

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

The number 8ffc21 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 is a composite number with 32 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 is a composite number with 32 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 has the following 5 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
37
1g21
Thirty-Seven in Base 21 Unovigesimal
73
3a21
Seventy-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

2211 · 3211 · 5211 · 1g211 · 3a211 = 8ffc21

Base Conversions

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