The Number

72009

Seventy-Two Thousand and Nine

Nearby Numbers

Positive, nonzero integers within three units

72006
Seventy-Two Thousand and Six
72007
Seventy-Two Thousand and Seven
72008
Seventy-Two Thousand and Eight
72010
Seventy-Two Thousand and Ten
72011
Seventy-Two Thousand and Eleven
72012
Seventy-Two Thousand and Twelve

Scientific Notation

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

7.2009e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000013887152994764543

The reciprocal of 72009.

Palindrome?

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

The number 72009 is not a palindrome.

Not A Prime Number

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

Seventy-two thousand and nine is a composite number with 20 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Seventy-two thousand and nine is a composite number with 20 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 seventy-two thousand and nine has the following 3 prime factors:

3
Three
7
Seven
127
One Hundred and Twenty-Seven

Prime Factorization

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

34 · 71 · 1271 = 72009

Base Conversions

The number seventy-two thousand and nine in 35 different bases