The Number

19990

Nineteen Thousand Nine Hundred and Ninety

In Base 28 Octovigesimal Is

pdq28

The numbers with a 28 subscript use Base 28 Octovigesimal 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
pdn28
Nineteen Thousand Nine Hundred and Eighty-Seven in Base 28 Octovigesimal
19988
pdo28
Nineteen Thousand Nine Hundred and Eighty-Eight in Base 28 Octovigesimal
19989
pdp28
Nineteen Thousand Nine Hundred and Eighty-Nine in Base 28 Octovigesimal
19991
pdr28
Nineteen Thousand Nine Hundred and Ninety-One in Base 28 Octovigesimal
19992
pe028
Nineteen Thousand Nine Hundred and Ninety-Two in Base 28 Octovigesimal
19993
pe128
Nineteen Thousand Nine Hundred and Ninety-Three in Base 28 Octovigesimal

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.

0.0012kqfpja707428

The reciprocal of 19990 in Base 28 Octovigesimal.

Palindrome?

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

The number pdq28 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 28 Octovigesimal

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
228
Two in Base 28 Octovigesimal
5
528
Five in Base 28 Octovigesimal
1999
2fb28
One Thousand Nine Hundred and Ninety-Nine in Base 28 Octovigesimal

Prime Factorization

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

2281 · 5281 · 2fb281 = pdq28

Base Conversions

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