68401440
68,401,440 is an even composite number composed of four prime numbers multiplied together.
68401440 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 68401440:
25 × 32 × 5 × 47501
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 47501)See below for interesting mathematical facts about the number 68401440 from the Numbermatics database.
Names of 68401440
- Cardinal: 68401440 can be written as Sixty-eight million, four hundred one thousand, four hundred forty.
Scientific notation
- Scientific notation: 6.840144 × 107
Factors of 68401440
Divisors of 68401440
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 47501 95002 142503 190004 237505 285006 380008 427509 475010 570012 712515 760016 855018 950020 1140024 1425030 1520032 1710036 1900040 2137545 2280048 2850060 3420072 3800080 4275090 4560096 5700120 6840144 7600160 8550180 11400240 13680288 17100360 22800480 34200720 68401440
- Sum of all divisors σ(n): 233424828
- Sum of proper divisors (its aliquot sum) s(n): 165023388
- 68401440 is an abundant number, because the sum of its proper divisors (165023388) is greater than itself. Its abundance is 96621948
Bases of 68401440
- Binary: 1000001001110111001001000002
- Hexadecimal: 0x413B920
- Base-36: 14Q2W0
Squares and roots of 68401440
- 68401440 squared (684014402) is 4678756994073600
- 68401440 cubed (684014403) is 320033715804705705984000
-
The
square root of 68401440 is 8270.5163079459 -
The
cube root of 68401440 is 408.9671404705
Scales and comparisons
How big is 68401440?- 68,401,440 seconds is equal to 2 years, 9 weeks, 16 hours, 24 minutes.
-
To count from 1 to 68,401,440 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 68401440 cubic inches would be around 34.1 feet tall.
Recreational maths with 68401440
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The information we have on file for 68401440 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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