The Number

19805

Nineteen Thousand Eight Hundred and Five

Nearby Numbers

Positive, nonzero integers within three units

19802
Nineteen Thousand Eight Hundred and Two
19803
Nineteen Thousand Eight Hundred and Three
19804
Nineteen Thousand Eight Hundred and Four
19806
Nineteen Thousand Eight Hundred and Six
19807
Nineteen Thousand Eight Hundred and Seven
19808
Nineteen Thousand Eight Hundred and Eight

Scientific Notation

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

1.9805e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00005049229992426155

The reciprocal of 19805.

Palindrome?

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

The number 19805 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 five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Nineteen thousand eight hundred and five is a composite number with 8 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 five has the following 3 prime factors:

5
Five
17
Seventeen
233
Two Hundred and Thirty-Three

Prime Factorization

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

51 · 171 · 2331 = 19805

Base Conversions

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