The Number

21815

Twenty-One Thousand Eight Hundred and Fifteen

In Base 30 Trigesimal Is

o7530

The numbers with a 30 subscript use Base 30 Trigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21812
o7230
Twenty-One Thousand Eight Hundred and Twelve in Base 30 Trigesimal
21813
o7330
Twenty-One Thousand Eight Hundred and Thirteen in Base 30 Trigesimal
21814
o7430
Twenty-One Thousand Eight Hundred and Fourteen in Base 30 Trigesimal
21816
o7630
Twenty-One Thousand Eight Hundred and Sixteen in Base 30 Trigesimal
21817
o7730
Twenty-One Thousand Eight Hundred and Seventeen in Base 30 Trigesimal
21818
o7830
Twenty-One Thousand Eight Hundred and Eightteen in Base 30 Trigesimal

Scientific Notation

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

2.1815e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00173rb60r6q2630

The reciprocal of 21815 in Base 30 Trigesimal.

Palindrome?

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

The number o7530 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 fifteen is a composite number with 4 total factors (including 1 and itself).   See primes in Base 30 Trigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and fifteen 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 fifteen has the following 2 prime factors:

5
530
Five in Base 30 Trigesimal
4363
4pd30
Four Thousand Three Hundred and Sixty-Three in Base 30 Trigesimal

Prime Factorization

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

5301 · 4pd301 = o7530

Base Conversions

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