The Number

16821

Sixteen Thousand Eight Hundred and Twenty-One

In Base 23 Trivigesimal Is

18i823

The numbers with a 23 subscript use Base 23 Trivigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

16818
18i523
Sixteen Thousand Eight Hundred and Eightteen in Base 23 Trivigesimal
16819
18i623
Sixteen Thousand Eight Hundred and Nineteen in Base 23 Trivigesimal
16820
18i723
Sixteen Thousand Eight Hundred and Twenty in Base 23 Trivigesimal
16822
18i923
Sixteen Thousand Eight Hundred and Twenty-Two in Base 23 Trivigesimal
16823
18ia23
Sixteen Thousand Eight Hundred and Twenty-Three in Base 23 Trivigesimal
16824
18ib23
Sixteen Thousand Eight Hundred and Twenty-Four in Base 23 Trivigesimal

Scientific Notation

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

1.6821e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000geef3gl2f60g23

The reciprocal of 16821 in Base 23 Trivigesimal.

Palindrome?

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

The number 18i823 is not a palindrome.

Not A Prime Number

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

Sixteen thousand eight hundred and twenty-one is a composite number with 16 total factors (including 1 and itself).   See primes in Base 23 Trivigesimal

A Composite

Composites have more than just these two factors.

Sixteen thousand eight hundred and twenty-one 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 sixteen thousand eight hundred and twenty-one has the following 3 prime factors:

3
323
Three in Base 23 Trivigesimal
7
723
Seven in Base 23 Trivigesimal
89
3k23
Eighty-Nine in Base 23 Trivigesimal

Prime Factorization

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

3233 · 7231 · 3k231 = 18i823

Base Conversions

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