42638940
42,638,940 is an even composite number composed of four prime numbers multiplied together.
42638940 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 42638940:
22 × 33 × 5 × 2812
(2 × 2 × 3 × 3 × 3 × 5 × 281 × 281)See below for interesting mathematical facts about the number 42638940 from the Numbermatics database.
Names of 42638940
- Cardinal: 42638940 can be written as Forty-two million, six hundred thirty-eight thousand, nine hundred forty.
Scientific notation
- Scientific notation: 4.263894 × 107
Factors of 42638940
Divisors of 42638940
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 281 540 562 843 1124 1405 1686 2529 2810 3372 4215 5058 5620 7587 8430 10116 12645 15174 16860 25290 30348 37935 50580 75870 78961 151740 157922 236883 315844 394805 473766 710649 789610 947532 1184415 1421298 1579220 2131947 2368830 2842596 3553245 4263894 4737660 7106490 8527788 10659735 14212980 21319470 42638940
- Sum of all divisors σ(n): 133128240
- Sum of proper divisors (its aliquot sum) s(n): 90489300
- 42638940 is an abundant number, because the sum of its proper divisors (90489300) is greater than itself. Its abundance is 47850360
Bases of 42638940
- Binary: 101000101010011110010111002
- Hexadecimal: 0x28A9E5C
- Base-36: PDWF0
Squares and roots of 42638940
- 42638940 squared (426389402) is 1818079204323600
- 42638940 cubed (426389403) is 77520970108401720984000
-
The
square root of 42638940 is 6529.8499217057 -
The
cube root of 42638940 is 349.3564773853
Scales and comparisons
How big is 42638940?- 42,638,940 seconds is equal to 1 year, 18 weeks, 3 days, 12 hours, 9 minutes.
-
To count from 1 to 42,638,940 would take you about two 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 42638940 cubic inches would be around 29.1 feet tall.
Recreational maths with 42638940
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The information we have on file for 42638940 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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