The Number

10821

Ten Thousand Eight Hundred and Twenty-One

In Base 21 Unovigesimal Is

13b621

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

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

Nearby Numbers

Positive, nonzero integers within three units

10818
13b321
Ten Thousand Eight Hundred and Eightteen in Base 21 Unovigesimal
10819
13b421
Ten Thousand Eight Hundred and Nineteen in Base 21 Unovigesimal
10820
13b521
Ten Thousand Eight Hundred and Twenty in Base 21 Unovigesimal
10822
13b721
Ten Thousand Eight Hundred and Twenty-Two in Base 21 Unovigesimal
10823
13b821
Ten Thousand Eight Hundred and Twenty-Three in Base 21 Unovigesimal
10824
13b921
Ten Thousand Eight Hundred and Twenty-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.

1.0821e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000hk8ih33i8k3821

The reciprocal of 10821 in Base 21 Unovigesimal.

Palindrome?

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

The number 13b621 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Ten thousand eight hundred and twenty-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.

Ten thousand eight hundred and twenty-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 ten thousand eight hundred and twenty-one has the following 2 prime factors:

3
321
Three in Base 21 Unovigesimal
3607
83g21
Three Thousand Six Hundred and 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 · 83g211 = 13b621

Base Conversions

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