640242768
640,242,768 is an even composite number composed of five prime numbers multiplied together.
640242768 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 640242768:
24 × 3 × 11 × 251 × 4831
(2 × 2 × 2 × 2 × 3 × 11 × 251 × 4831)See below for interesting mathematical facts about the number 640242768 from the Numbermatics database.
Names of 640242768
- Cardinal: 640242768 can be written as Six hundred forty million, two hundred forty-two thousand, seven hundred sixty-eight.
Scientific notation
- Scientific notation: 6.40242768 × 108
Factors of 640242768
Divisors of 640242768
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 251 264 502 528 753 1004 1506 2008 2761 3012 4016 4831 5522 6024 8283 9662 11044 12048 14493 16566 19324 22088 28986 33132 38648 44176 53141 57972 66264 77296 106282 115944 132528 159423 212564 231888 318846 425128 637692 850256 1212581 1275384 2425162 2550768 3637743 4850324 7275486 9700648 13338391 14550972 19401296 26676782 29101944 40015173 53353564 58203888 80030346 106707128 160060692 213414256 320121384 640242768
- Sum of all divisors σ(n): 1811884032
- Sum of proper divisors (its aliquot sum) s(n): 1171641264
- 640242768 is an abundant number, because the sum of its proper divisors (1171641264) is greater than itself. Its abundance is 531398496
Bases of 640242768
- Binary: 1001100010100101010100010100002
- Hexadecimal: 0x26295450
- Base-36: AL6MHC
Squares and roots of 640242768
- 640242768 squared (6402427682) is 409910801976301824
- 640242768 cubed (6402427683) is 262442426490407350201208832
-
The
square root of 640242768 is 25303.0189503149 -
The
cube root of 640242768 is 861.8828263633
Scales and comparisons
How big is 640242768?- 640,242,768 seconds is equal to 20 years, 18 weeks, 4 days, 5 hours, 12 minutes, 48 seconds.
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To count from 1 to 640,242,768 would take you about thirty 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 640242768 cubic inches would be around 71.8 feet tall.
Recreational maths with 640242768
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The information we have on file for 640242768 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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