The Number

19990

Nineteen Thousand Nine Hundred and Ninety

In Base 15 Quindecimal Is

5dca15

The numbers with a 15 subscript use Base 15 Quindecimal notation.

For more familiar numbers: See Nineteen Thousand Nine Hundred and Ninety in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

19987
5dc715
Nineteen Thousand Nine Hundred and Eighty-Seven in Base 15 Quindecimal
19988
5dc815
Nineteen Thousand Nine Hundred and Eighty-Eight in Base 15 Quindecimal
19989
5dc915
Nineteen Thousand Nine Hundred and Eighty-Nine in Base 15 Quindecimal
19991
5dcb15
Nineteen Thousand Nine Hundred and Ninety-One in Base 15 Quindecimal
19992
5dcc15
Nineteen Thousand Nine Hundred and Ninety-Two in Base 15 Quindecimal
19993
5dcd15
Nineteen Thousand Nine Hundred and Ninety-Three in Base 15 Quindecimal

Scientific Notation

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

1.9990e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00027ec398009444c815

The reciprocal of 19990 in Base 15 Quindecimal.

Palindrome?

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

The number 5dca15 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 nine hundred and ninety is a composite number with 8 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Nineteen thousand nine hundred and ninety 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 nine hundred and ninety has the following 3 prime factors:

2
215
Two in Base 15 Quindecimal
5
515
Five in Base 15 Quindecimal
1999
8d415
One Thousand Nine Hundred and Ninety-Nine in Base 15 Quindecimal

Prime Factorization

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

2151 · 5151 · 8d4151 = 5dca15

Base Conversions

The number nineteen thousand nine hundred and ninety in 35 different bases