The Number

18521

Eightteen Thousand Five Hundred and Twenty-One

In Base 13 Tridecimal Is

857913

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

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

Nearby Numbers

Positive, nonzero integers within three units

18518
857613
Eightteen Thousand Five Hundred and Eightteen in Base 13 Tridecimal
18519
857713
Eightteen Thousand Five Hundred and Nineteen in Base 13 Tridecimal
18520
857813
Eightteen Thousand Five Hundred and Twenty in Base 13 Tridecimal
18522
857a13
Eightteen Thousand Five Hundred and Twenty-Two in Base 13 Tridecimal
18523
857b13
Eightteen Thousand Five Hundred and Twenty-Three in Base 13 Tridecimal
18524
857c13
Eightteen Thousand Five 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.

1.8521e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001707c731c34661913

The reciprocal of 18521 in Base 13 Tridecimal.

Palindrome?

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

The number 857913 is not a palindrome.

A Prime Number

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

Eightteen thousand five hundred and twenty-one is the 2121st prime number.   See primes in Base 13 Tridecimal

Not A Composite

Composites have more than just these two factors.

Eightteen Thousand Five Hundred and Twenty-One is not a composite number because it has exactly two factors: One and Eightteen Thousand Five Hundred and Twenty-One

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number eightteen thousand five hundred and twenty-one has the following 1 prime factor:

18521
857913
Eightteen Thousand Five Hundred and Twenty-One in Base 13 Tridecimal

Prime Factorization

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

8579131 = 857913

Base Conversions

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