The Number

216990

Two Hundred and Sixteen Thousand Nine Hundred and Ninety

In Base 18 Octodecimal Is

213d018

The numbers with a 18 subscript use Base 18 Octodecimal notation.

For more familiar numbers: See Two Hundred and Sixteen Thousand Nine Hundred and Ninety in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

216987
213cf18
Two Hundred and Sixteen Thousand Nine Hundred and Eighty-Seven in Base 18 Octodecimal
216988
213cg18
Two Hundred and Sixteen Thousand Nine Hundred and Eighty-Eight in Base 18 Octodecimal
216989
213ch18
Two Hundred and Sixteen Thousand Nine Hundred and Eighty-Nine in Base 18 Octodecimal
216991
213d118
Two Hundred and Sixteen Thousand Nine Hundred and Ninety-One in Base 18 Octodecimal
216992
213d218
Two Hundred and Sixteen Thousand Nine Hundred and Ninety-Two in Base 18 Octodecimal
216993
213d318
Two Hundred and Sixteen Thousand Nine Hundred and Ninety-Three in Base 18 Octodecimal

Scientific Notation

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

2.16990e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00008cd7a455685618

The reciprocal of 216990 in Base 18 Octodecimal.

Palindrome?

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

The number 213d018 is not a palindrome.

Not A Prime Number

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

Two hundred and sixteen thousand nine hundred and ninety is a composite number with 24 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Two hundred and sixteen thousand nine hundred and ninety is a composite number with 24 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 two hundred and sixteen thousand nine hundred and ninety has the following 4 prime factors:

2
218
Two in Base 18 Octodecimal
3
318
Three in Base 18 Octodecimal
5
518
Five in Base 18 Octodecimal
2411
77h18
Two Thousand Four Hundred and Eleven in Base 18 Octodecimal

Prime Factorization

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

2181 · 3182 · 5181 · 77h181 = 213d018

Base Conversions

The number two hundred and sixteen thousand nine hundred and ninety in 35 different bases