129739128

129,739,128 is an even composite number composed of three prime numbers multiplied together.

What does the number 129739128 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

129739128 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 129739128:

2³ × 3 × 5405797

(2 × 2 × 2 × 3 × 5405797)

See below for interesting mathematical facts about the number 129739128 from the Numbermatics database.

Names of 129739128

Cardinal: 129739128 can be written as One hundred twenty-nine million, seven hundred thirty-nine thousand, one hundred twenty-eight.

Scientific notation

Scientific notation: 1.29739128 × 10⁸

Factors of 129739128

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 5405802

Divisors of 129739128

Number of divisors d(n): 16
Complete list of divisors:
1 2 3 4 6 8 12 24 5405797 10811594 16217391 21623188 32434782 43246376 64869564 129739128
Sum of all divisors σ(n): 324347880
Sum of proper divisors (its aliquot sum) s(n): 194608752
129739128 is an abundant number, because the sum of its proper divisors (194608752) is greater than itself. Its abundance is 64869624

Bases of 129739128

Binary: 111101110111010100101111000₂
Hexadecimal: 0x7BBA978
Base-36: 258RCO

Squares and roots of 129739128

129739128 squared (129739128²) is 16832241334200384
129739128 cubed (129739128³) is 2183800312984714397425152
The square root of 129739128 is 11390.3085120641
The cube root of 129739128 is 506.2406225363

Scales and comparisons

How big is 129739128?

129,739,128 seconds is equal to 4 years, 6 weeks, 3 days, 14 hours, 38 minutes, 48 seconds.
To count from 1 to 129,739,128 would take you about six years!

This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
A cube with a volume of 129739128 cubic inches would be around 42.2 feet tall.

Recreational maths with 129739128

129739128 backwards is 821937921
The number of decimal digits it has is: 9
The sum of 129739128's digits is 42
More coming soon!

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The information we have on file for 129739128 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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