The Number

10821

Ten Thousand Eight Hundred and Twenty-One

In Base 18 Octodecimal Is

1f7318

The numbers with a 18 subscript use Base 18 Octodecimal 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
1f7018
Ten Thousand Eight Hundred and Eightteen in Base 18 Octodecimal
10819
1f7118
Ten Thousand Eight Hundred and Nineteen in Base 18 Octodecimal
10820
1f7218
Ten Thousand Eight Hundred and Twenty in Base 18 Octodecimal
10822
1f7418
Ten Thousand Eight Hundred and Twenty-Two in Base 18 Octodecimal
10823
1f7518
Ten Thousand Eight Hundred and Twenty-Three in Base 18 Octodecimal
10824
1f7618
Ten Thousand Eight Hundred and Twenty-Four in Base 18 Octodecimal

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.

0.0009cb3097df803118

The reciprocal of 10821 in Base 18 Octodecimal.

Palindrome?

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

The number 1f7318 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 18 Octodecimal

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
318
Three in Base 18 Octodecimal
3607
b2718
Three Thousand Six Hundred and Seven in Base 18 Octodecimal

Prime Factorization

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

3181 · b27181 = 1f7318

Base Conversions

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