The Number

21818

Twenty-One Thousand Eight Hundred and Eightteen

In Base 9 Nonary Is

328329

The numbers with a 9 subscript use Base 9 Nonary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21815
328289
Twenty-One Thousand Eight Hundred and Fifteen in Base 9 Nonary
21816
328309
Twenty-One Thousand Eight Hundred and Sixteen in Base 9 Nonary
21817
328319
Twenty-One Thousand Eight Hundred and Seventeen in Base 9 Nonary
21819
328339
Twenty-One Thousand Eight Hundred and Nineteen in Base 9 Nonary
21820
328349
Twenty-One Thousand Eight Hundred and Twenty in Base 9 Nonary
21821
328359
Twenty-One Thousand Eight Hundred and Twenty-One in Base 9 Nonary

Scientific Notation

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

2.1818e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00002631882485826325259

The reciprocal of 21818 in Base 9 Nonary.

Palindrome?

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

The number 328329 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand eight hundred and eightteen is a composite number with 4 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and eightteen is a composite number with 4 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 twenty-one thousand eight hundred and eightteen has the following 2 prime factors:

2
29
Two in Base 9 Nonary
10909
158619
Ten Thousand Nine Hundred and Nine in Base 9 Nonary

Prime Factorization

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

291 · 1586191 = 328329

Base Conversions

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