The Number

18821

Eightteen Thousand Eight Hundred and Twenty-One

In Base 13 Tridecimal Is

874a13

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

18818
874713
Eightteen Thousand Eight Hundred and Eightteen in Base 13 Tridecimal
18819
874813
Eightteen Thousand Eight Hundred and Nineteen in Base 13 Tridecimal
18820
874913
Eightteen Thousand Eight Hundred and Twenty in Base 13 Tridecimal
18822
874b13
Eightteen Thousand Eight Hundred and Twenty-Two in Base 13 Tridecimal
18823
874c13
Eightteen Thousand Eight Hundred and Twenty-Three in Base 13 Tridecimal
18824
875013
Eightteen 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.

1.8821e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001695c6983b3a732613

The reciprocal of 18821 in Base 13 Tridecimal.

Palindrome?

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

The number 874a13 is not a palindrome.

Not A Prime Number

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

Eightteen thousand eight hundred and twenty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Eightteen thousand eight hundred and twenty-one is a composite number with 8 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 eightteen thousand eight hundred and twenty-one has the following 3 prime factors:

11
b13
Eleven in Base 13 Tridecimal
29
2313
Twenty-Nine in Base 13 Tridecimal
59
4713
Fifty-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

b131 · 23131 · 47131 = 874a13

Base Conversions

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