The Number

9990

Nine Thousand Nine Hundred and Ninety

In Base 15 Quindecimal Is

2e6015

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

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

Nearby Numbers

Positive, nonzero integers within three units

9987
2e5c15
Nine Thousand Nine Hundred and Eighty-Seven in Base 15 Quindecimal
9988
2e5d15
Nine Thousand Nine Hundred and Eighty-Eight in Base 15 Quindecimal
9989
2e5e15
Nine Thousand Nine Hundred and Eighty-Nine in Base 15 Quindecimal
9991
2e6115
Nine Thousand Nine Hundred and Ninety-One in Base 15 Quindecimal
9992
2e6215
Nine Thousand Nine Hundred and Ninety-Two in Base 15 Quindecimal
9993
2e6315
Nine 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.

9.990e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0005103091c57164415

The reciprocal of 9990 in Base 15 Quindecimal.

Palindrome?

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

The number 2e6015 is not a palindrome.

Not A Prime Number

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

Nine thousand nine hundred and ninety is a composite number with 32 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Nine thousand nine hundred and ninety 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 nine thousand nine hundred and ninety has the following 4 prime factors:

2
215
Two in Base 15 Quindecimal
3
315
Three in Base 15 Quindecimal
5
515
Five in Base 15 Quindecimal
37
2715
Thirty-Seven 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 · 3153 · 5151 · 27151 = 2e6015

Base Conversions

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