The Number

9999

Nine Thousand Nine Hundred and Ninety-Nine

Nearby Numbers

Positive, nonzero integers within three units

9996
Nine Thousand Nine Hundred and Ninety-Six
9997
Nine Thousand Nine Hundred and Ninety-Seven
9998
Nine Thousand Nine Hundred and Ninety-Eight
10000
Ten Thousand
10001
Ten Thousand and One
10002
Ten Thousand and Two

Scientific Notation

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

9.999e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00010001000100010001

The reciprocal of 9999.

Palindrome?

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

The number 9999 is 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-nine is a composite number with 12 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Nine thousand nine hundred and ninety-nine is a composite number with 12 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-nine has the following 3 prime factors:

3
Three
11
Eleven
101
One Hundred and One

Prime Factorization

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

32 · 111 · 1011 = 9999

Base Conversions

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