Nearby Numbers

Positive, nonzero integers within three units

21037

3agd18

Twenty-One Thousand and Thirty-Seven in Base 18 Octodecimal

21038

3age18

Twenty-One Thousand and Thirty-Eight in Base 18 Octodecimal

21039

3agf18

Twenty-One Thousand and Thirty-Nine in Base 18 Octodecimal

21041

3agh18

Twenty-One Thousand and Forty-One in Base 18 Octodecimal

21042

3ah018

Twenty-One Thousand and Forty-Two in Base 18 Octodecimal

21043

3ah118

Twenty-One Thousand and Forty-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.

2.1040e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004he9g6gc1e97818

The reciprocal of 21040 in Base 18 Octodecimal.

Palindrome?

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

The number 3agg18 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 and forty is a composite number with 20 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand and forty is a composite number with 20 total factors (including 1 and itself).

Prime Factors

2

218

Two in Base 18 Octodecimal

5

518

Five in Base 18 Octodecimal

263

eb18

Two Hundred and Sixty-Three in Base 18 Octodecimal

Prime Factorization

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

2184 · 5181 · eb181 = 3agg18

Base Conversions

The number twenty-one thousand and forty in 35 different bases