The Number

129440

One Hundred and Twenty-Nine Thousand Four Hundred and Forty

Nearby Numbers

Positive, nonzero integers within three units

129437
One Hundred and Twenty-Nine Thousand Four Hundred and Thirty-Seven
129438
One Hundred and Twenty-Nine Thousand Four Hundred and Thirty-Eight
129439
One Hundred and Twenty-Nine Thousand Four Hundred and Thirty-Nine
129441
One Hundred and Twenty-Nine Thousand Four Hundred and Forty-One
129442
One Hundred and Twenty-Nine Thousand Four Hundred and Forty-Two
129443
One Hundred and Twenty-Nine Thousand Four Hundred and Forty-Three

Scientific Notation

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

1.29440e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000007725587144622992

The reciprocal of 129440.

Palindrome?

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

The number 129440 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 twenty-nine thousand four hundred and forty is a composite number with 24 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 twenty-nine thousand four hundred and forty is a composite number with 24 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 twenty-nine thousand four hundred and forty has the following 3 prime factors:

2
Two
5
Five
809
Eight Hundred and Nine

Prime Factorization

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

25 · 51 · 8091 = 129440

Base Conversions

The number one hundred and twenty-nine thousand four hundred and forty in 35 different bases