The Number

138509

One Hundred and Thirty-Eight Thousand Five Hundred and Nine

Nearby Numbers

Positive, nonzero integers within three units

138506
One Hundred and Thirty-Eight Thousand Five Hundred and Six
138507
One Hundred and Thirty-Eight Thousand Five Hundred and Seven
138508
One Hundred and Thirty-Eight Thousand Five Hundred and Eight
138510
One Hundred and Thirty-Eight Thousand Five Hundred and Ten
138511
One Hundred and Thirty-Eight Thousand Five Hundred and Eleven
138512
One Hundred and Thirty-Eight Thousand Five Hundred and Twelve

Scientific Notation

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

1.38509e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000007219747453234086

The reciprocal of 138509.

Palindrome?

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

The number 138509 is not a palindrome.

Not A Prime Number

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

One hundred and thirty-eight thousand five hundred and nine is a composite number with 8 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

One hundred and thirty-eight thousand five hundred and nine 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 one hundred and thirty-eight thousand five hundred and nine has the following 3 prime factors:

7
Seven
47
Forty-Seven
421
Four Hundred and Twenty-One

Prime Factorization

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

71 · 471 · 4211 = 138509

Base Conversions

The number one hundred and thirty-eight thousand five hundred and nine in 35 different bases