The Number

4009

Four Thousand and Nine

Nearby Numbers

Positive, nonzero integers within three units

4006
Four Thousand and Six
4007
Four Thousand and Seven
4008
Four Thousand and Eight
4010
Four Thousand and Ten
4011
Four Thousand and Eleven
4012
Four Thousand and Twelve

Scientific Notation

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

4.009e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0002494387627837366

The reciprocal of 4009.

Palindrome?

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

The number 4009 is not a palindrome.

Not A Prime Number

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

Four thousand and nine is a composite number with 4 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Four thousand and nine is a composite number with 4 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 four thousand and nine has the following 2 prime factors:

19
Nineteen
211
Two Hundred and Eleven

Prime Factorization

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

191 · 2111 = 4009

Base Conversions

The number four thousand and nine in 35 different bases