The Number

19840

Nineteen Thousand Eight Hundred and Forty

In Base 21 Unovigesimal Is

22kg21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

For more familiar numbers: See Nineteen Thousand Eight Hundred and Forty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

19837
22kd21
Nineteen Thousand Eight Hundred and Thirty-Seven in Base 21 Unovigesimal
19838
22ke21
Nineteen Thousand Eight Hundred and Thirty-Eight in Base 21 Unovigesimal
19839
22kf21
Nineteen Thousand Eight Hundred and Thirty-Nine in Base 21 Unovigesimal
19841
22kh21
Nineteen Thousand Eight Hundred and Forty-One in Base 21 Unovigesimal
19842
22ki21
Nineteen Thousand Eight Hundred and Forty-Two in Base 21 Unovigesimal
19843
22kj21
Nineteen Thousand Eight Hundred and Forty-Three in Base 21 Unovigesimal

Scientific Notation

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

1.9840e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0009ghie2b7ff6j21

The reciprocal of 19840 in Base 21 Unovigesimal.

Palindrome?

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

The number 22kg21 is not a palindrome.

Not A Prime Number

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

Nineteen thousand eight hundred and forty is a composite number with 32 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Nineteen thousand eight hundred and forty is a composite number with 32 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 nineteen thousand eight hundred and forty has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
31
1a21
Thirty-One in Base 21 Unovigesimal

Prime Factorization

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

2217 · 5211 · 1a211 = 22kg21

Base Conversions

The number nineteen thousand eight hundred and forty in 35 different bases