The Number

21820

Twenty-One Thousand Eight Hundred and Twenty

In Base 20 Vigesimal Is

2eb020

The numbers with a 20 subscript use Base 20 Vigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21817
2eah20
Twenty-One Thousand Eight Hundred and Seventeen in Base 20 Vigesimal
21818
2eai20
Twenty-One Thousand Eight Hundred and Eightteen in Base 20 Vigesimal
21819
2eaj20
Twenty-One Thousand Eight Hundred and Nineteen in Base 20 Vigesimal
21821
2eb120
Twenty-One Thousand Eight Hundred and Twenty-One in Base 20 Vigesimal
21822
2eb220
Twenty-One Thousand Eight Hundred and Twenty-Two in Base 20 Vigesimal
21823
2eb320
Twenty-One Thousand Eight Hundred and Twenty-Three in Base 20 Vigesimal

Scientific Notation

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

2.1820e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00076d1fb59c9dbc20

The reciprocal of 21820 in Base 20 Vigesimal.

Palindrome?

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

The number 2eb020 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 twenty is a composite number with 12 total factors (including 1 and itself).   See primes in Base 20 Vigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and twenty is a composite number with 12 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 twenty has the following 3 prime factors:

2
220
Two in Base 20 Vigesimal
5
520
Five in Base 20 Vigesimal
1091
2eb20
One Thousand and Ninety-One in Base 20 Vigesimal

Prime Factorization

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

2202 · 5201 · 2eb201 = 2eb020

Base Conversions

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