The Number

129921

One Hundred and Twenty-Nine Thousand Nine Hundred and Twenty-One

Nearby Numbers

Positive, nonzero integers within three units

129918
One Hundred and Twenty-Nine Thousand Nine Hundred and Eightteen
129919
One Hundred and Twenty-Nine Thousand Nine Hundred and Nineteen
129920
One Hundred and Twenty-Nine Thousand Nine Hundred and Twenty
129922
One Hundred and Twenty-Nine Thousand Nine Hundred and Twenty-Two
129923
One Hundred and Twenty-Nine Thousand Nine Hundred and Twenty-Three
129924
One Hundred and Twenty-Nine Thousand Nine Hundred and Twenty-Four

Scientific Notation

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

1.29921e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00000769698509093988

The reciprocal of 129921.

Palindrome?

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

The number 129921 is 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 nine hundred and twenty-one is a composite number with 16 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 nine hundred and twenty-one is a composite number with 16 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 nine hundred and twenty-one has the following 4 prime factors:

3
Three
11
Eleven
31
Thirty-One
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

31 · 111 · 311 · 1271 = 129921

Base Conversions

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