The Number

16821

Sixteen Thousand Eight Hundred and Twenty-One

In Base 13 Tridecimal Is

786c13

The numbers with a 13 subscript use Base 13 Tridecimal 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
786913
Sixteen Thousand Eight Hundred and Eightteen in Base 13 Tridecimal
16819
786a13
Sixteen Thousand Eight Hundred and Nineteen in Base 13 Tridecimal
16820
786b13
Sixteen Thousand Eight Hundred and Twenty in Base 13 Tridecimal
16822
787013
Sixteen Thousand Eight Hundred and Twenty-Two in Base 13 Tridecimal
16823
787113
Sixteen Thousand Eight Hundred and Twenty-Three in Base 13 Tridecimal
16824
787213
Sixteen Thousand Eight Hundred and Twenty-Four in Base 13 Tridecimal

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.

0.000190c4a211a1886213

The reciprocal of 16821 in Base 13 Tridecimal.

Palindrome?

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

The number 786c13 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 13 Tridecimal

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
313
Three in Base 13 Tridecimal
7
713
Seven in Base 13 Tridecimal
89
6b13
Eighty-Nine in Base 13 Tridecimal

Prime Factorization

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

3133 · 7131 · 6b131 = 786c13

Base Conversions

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