72120978

72,120,978 is an even composite number composed of three prime numbers multiplied together.

What does the number 72120978 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

72120978 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 72120978:

2 × 3² × 4006721

(2 × 3 × 3 × 4006721)

See below for interesting mathematical facts about the number 72120978 from the Numbermatics database.

Names of 72120978

Cardinal: 72120978 can be written as Seventy-two million, one hundred twenty thousand, nine hundred seventy-eight.

Scientific notation

Scientific notation: 7.2120978 × 10⁷

Factors of 72120978

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 4006726

Divisors of 72120978

Number of divisors d(n): 12
Complete list of divisors:
1 2 3 6 9 18 4006721 8013442 12020163 24040326 36060489 72120978
Sum of all divisors σ(n): 156262158
Sum of proper divisors (its aliquot sum) s(n): 84141180
72120978 is an abundant number, because the sum of its proper divisors (84141180) is greater than itself. Its abundance is 12020202

Bases of 72120978

Binary: 100010011000111101010010010₂
Hexadecimal: 0x44C7A92
Base-36: 16XSWI

Squares and roots of 72120978

72120978 squared (72120978²) is 5201435467676484
72120978 cubed (72120978³) is 375132612932715413681352
The square root of 72120978 is 8492.4070792679
The cube root of 72120978 is 416.2496382867

Scales and comparisons

How big is 72120978?

72,120,978 seconds is equal to 2 years, 15 weeks, 1 day, 17 hours, 36 minutes, 18 seconds.
To count from 1 to 72,120,978 would take you about three 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 72120978 cubic inches would be around 34.7 feet tall.

Recreational maths with 72120978

72120978 backwards is 87902127
The number of decimal digits it has is: 8
The sum of 72120978's digits is 36
More coming soon!

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The information we have on file for 72120978 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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