129240

129,240 is an even composite number composed of four prime numbers multiplied together.

What does the number 129240 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

129240 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 129240:

2³ × 3² × 5 × 359

(2 × 2 × 2 × 3 × 3 × 5 × 359)

See below for interesting mathematical facts about the number 129240 from the Numbermatics database.

Names of 129240

Cardinal: 129240 can be written as One hundred twenty-nine thousand, two hundred forty.

Scientific notation

Scientific notation: 1.2924 × 10⁵

Factors of 129240

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 369

Divisors of 129240

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 359 360 718 1077 1436 1795 2154 2872 3231 3590 4308 5385 6462 7180 8616 10770 12924 14360 16155 21540 25848 32310 43080 64620 129240
Sum of all divisors σ(n): 421200
Sum of proper divisors (its aliquot sum) s(n): 291960
129240 is an abundant number, because the sum of its proper divisors (291960) is greater than itself. Its abundance is 162720

Bases of 129240

Binary: 11111100011011000₂
Hexadecimal: 0x1F8D8
Base-36: 2RQ0

Squares and roots of 129240

129240 squared (129240²) is 16702977600
129240 cubed (129240³) is 2158692825024000
The square root of 129240 is 359.4996522947
The cube root of 129240 is 50.5590590943

Scales and comparisons

How big is 129240?

129,240 seconds is equal to 1 day, 11 hours, 54 minutes.
To count from 1 to 129,240 would take you about eleven hours.

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 129240 cubic inches would be around 4.2 feet tall.

Recreational maths with 129240

129240 backwards is 042921
129240 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 129240's digits is 18
More coming soon!

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The information we have on file for 129240 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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