640426864
640,426,864 is an even composite number composed of five prime numbers multiplied together.
640426864 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 640426864:
24 × 72 × 112 × 43 × 157
(2 × 2 × 2 × 2 × 7 × 7 × 11 × 11 × 43 × 157)See below for interesting mathematical facts about the number 640426864 from the Numbermatics database.
Names of 640426864
- Cardinal: 640426864 can be written as Six hundred forty million, four hundred twenty-six thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 6.40426864 × 108
Factors of 640426864
Divisors of 640426864
- Number of divisors d(n): 180
-
Complete list of divisors:
1 2 4 7 8 11 14 16 22 28 43 44 49 56 77 86 88 98 112 121 154 157 172 176 196 242 301 308 314 344 392 473 484 539 602 616 628 688 784 847 946 968 1078 1099 1204 1232 1256 1694 1727 1892 1936 2107 2156 2198 2408 2512 3311 3388 3454 3784 4214 4312 4396 4816 5203 5929 6622 6751 6776 6908 7568 7693 8428 8624 8792 10406 11858 12089 13244 13502 13552 13816 15386 16856 17584 18997 20812 23177 23716 24178 26488 27004 27632 30772 33712 36421 37994 41624 46354 47257 47432 48356 52976 54008 61544 72842 74261 75988 83248 84623 92708 94514 94864 96712 108016 123088 132979 145684 148522 151976 169246 185416 189028 193424 254947 265958 291368 297044 303952 330799 338492 370832 378056 509894 519827 531916 582736 594088 661598 676984 756112 816871 930853 1019788 1039654 1063832 1188176 1323196 1353968 1633742 1861706 2039576 2079308 2127664 2646392 3267484 3638789 3723412 4079152 4158616 5292784 5718097 6534968 7277578 7446824 8317232 11436194 13069936 14555156 14893648 22872388 29110312 40026679 45744776 58220624 80053358 91489552 160106716 320213432 640426864
- Sum of all divisors σ(n): 1633796472
- Sum of proper divisors (its aliquot sum) s(n): 993369608
- 640426864 is an abundant number, because the sum of its proper divisors (993369608) is greater than itself. Its abundance is 352942744
Bases of 640426864
- Binary: 1001100010110000100011011100002
- Hexadecimal: 0x262C2370
- Base-36: ALAKJ4
Squares and roots of 640426864
- 640426864 squared (6404268642) is 410146568132874496
- 640426864 cubed (6404268643) is 262668880409699148778860544
-
The
square root of 640426864 is 25306.6565156287 -
The
cube root of 640426864 is 861.9654273097
Scales and comparisons
How big is 640426864?- 640,426,864 seconds is equal to 20 years, 18 weeks, 6 days, 8 hours, 21 minutes, 4 seconds.
-
To count from 1 to 640,426,864 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 640426864 cubic inches would be around 71.8 feet tall.
Recreational maths with 640426864
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 640426864 - Facts about the integer". Numbermatics.com. 2024. Web. 7 June 2024.
APA style:
Numbermatics. (2024). Number 640426864 - Facts about the integer. Retrieved 7 June 2024, from https://numbermatics.com/n/640426864/
Chicago style:
Numbermatics. 2024. "Number 640426864 - Facts about the integer". https://numbermatics.com/n/640426864/
The information we have on file for 640426864 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!
Keywords: Divisors of 640426864, math, Factors of 640426864, curriculum, school, college, exams, university, Prime factorization of 640426864, STEM, science, technology, engineering, physics, economics, calculator, six hundred forty million, four hundred twenty-six thousand, eight hundred sixty-four.