The Number

129728

One Hundred and Twenty-Nine Thousand Seven Hundred and Twenty-Eight

Nearby Numbers

Positive, nonzero integers within three units

129725
One Hundred and Twenty-Nine Thousand Seven Hundred and Twenty-Five
129726
One Hundred and Twenty-Nine Thousand Seven Hundred and Twenty-Six
129727
One Hundred and Twenty-Nine Thousand Seven Hundred and Twenty-Seven
129729
One Hundred and Twenty-Nine Thousand Seven Hundred and Twenty-Nine
129730
One Hundred and Twenty-Nine Thousand Seven Hundred and Thirty
129731
One Hundred and Twenty-Nine Thousand Seven Hundred and Thirty-One

Scientific Notation

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

1.29728e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000077084361124815

The reciprocal of 129728.

Palindrome?

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

The number 129728 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 seven hundred and twenty-eight is a composite number with 14 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 seven hundred and twenty-eight is a composite number with 14 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 seven hundred and twenty-eight has the following 2 prime factors:

2
Two
2027
Two Thousand and Twenty-Seven

Prime Factorization

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

26 · 20271 = 129728

Base Conversions

The number one hundred and twenty-nine thousand seven hundred and twenty-eight in 35 different bases