72139860
72,139,860 is an even composite number composed of five prime numbers multiplied together.
72139860 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 72139860:
22 × 32 × 5 × 13 × 30829
(2 × 2 × 3 × 3 × 5 × 13 × 30829)See below for interesting mathematical facts about the number 72139860 from the Numbermatics database.
Names of 72139860
- Cardinal: 72139860 can be written as Seventy-two million, one hundred thirty-nine thousand, eight hundred sixty.
Scientific notation
- Scientific notation: 7.213986 × 107
Factors of 72139860
Divisors of 72139860
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 30829 61658 92487 123316 154145 184974 277461 308290 369948 400777 462435 554922 616580 801554 924870 1109844 1202331 1387305 1603108 1849740 2003885 2404662 2774610 3606993 4007770 4809324 5549220 6011655 7213986 8015540 12023310 14427972 18034965 24046620 36069930 72139860
- Sum of all divisors σ(n): 235664520
- Sum of proper divisors (its aliquot sum) s(n): 163524660
- 72139860 is an abundant number, because the sum of its proper divisors (163524660) is greater than itself. Its abundance is 91384800
Bases of 72139860
- Binary: 1000100110011000100010101002
- Hexadecimal: 0x44CC454
- Base-36: 16Y7H0
Squares and roots of 72139860
- 72139860 squared (721398602) is 5204159400819600
- 72139860 cubed (721398603) is 375427330592809829256000
-
The
square root of 72139860 is 8493.5187054601 -
The
cube root of 72139860 is 416.2859612359
Scales and comparisons
How big is 72139860?- 72,139,860 seconds is equal to 2 years, 15 weeks, 1 day, 22 hours, 51 minutes.
-
To count from 1 to 72,139,860 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 72139860 cubic inches would be around 34.7 feet tall.
Recreational maths with 72139860
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The information we have on file for 72139860 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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