640613428
640,613,428 is an even composite number composed of five prime numbers multiplied together.
640613428 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 640613428:
22 × 7 × 132 × 331 × 409
(2 × 2 × 7 × 13 × 13 × 331 × 409)See below for interesting mathematical facts about the number 640613428 from the Numbermatics database.
Names of 640613428
- Cardinal: 640613428 can be written as Six hundred forty million, six hundred thirteen thousand, four hundred twenty-eight.
Scientific notation
- Scientific notation: 6.40613428 × 108
Factors of 640613428
Divisors of 640613428
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 7 13 14 26 28 52 91 169 182 331 338 364 409 662 676 818 1183 1324 1636 2317 2366 2863 4303 4634 4732 5317 5726 8606 9268 10634 11452 17212 21268 30121 37219 55939 60242 69121 74438 111878 120484 135379 138242 148876 223756 270758 276484 391573 483847 541516 783146 947653 967694 1566292 1759927 1895306 1935388 3519854 3790612 7039708 12319489 22879051 24638978 45758102 49277956 91516204 160153357 320306714 640613428
- Sum of all divisors σ(n): 1394957760
- Sum of proper divisors (its aliquot sum) s(n): 754344332
- 640613428 is an abundant number, because the sum of its proper divisors (754344332) is greater than itself. Its abundance is 113730904
Bases of 640613428
- Binary: 1001100010111011111100001101002
- Hexadecimal: 0x262EFC34
- Base-36: ALEKHG
Squares and roots of 640613428
- 640613428 squared (6406134282) is 410385564133911184
- 640613428 cubed (6406134283) is 262898503041538694629778752
-
The
square root of 640613428 is 25310.3423129755 -
The
cube root of 640613428 is 862.0491194603
Scales and comparisons
How big is 640613428?- 640,613,428 seconds is equal to 20 years, 19 weeks, 1 day, 12 hours, 10 minutes, 28 seconds.
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To count from 1 to 640,613,428 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 640613428 cubic inches would be around 71.8 feet tall.
Recreational maths with 640613428
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The information we have on file for 640613428 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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