641340990
641,340,990 is an even composite number composed of five prime numbers multiplied together.
641340990 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 641340990:
2 × 34 × 5 × 353 × 2243
(2 × 3 × 3 × 3 × 3 × 5 × 353 × 2243)See below for interesting mathematical facts about the number 641340990 from the Numbermatics database.
Names of 641340990
- Cardinal: 641340990 can be written as Six hundred forty-one million, three hundred forty thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 6.4134099 × 108
Factors of 641340990
Divisors of 641340990
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 353 405 706 810 1059 1765 2118 2243 3177 3530 4486 5295 6354 6729 9531 10590 11215 13458 15885 19062 20187 22430 28593 31770 33645 40374 47655 57186 60561 67290 95310 100935 121122 142965 181683 201870 285930 302805 363366 605610 791779 908415 1583558 1816830 2375337 3958895 4750674 7126011 7917790 11876685 14252022 21378033 23753370 35630055 42756066 64134099 71260110 106890165 128268198 213780330 320670495 641340990
- Sum of all divisors σ(n): 1730150928
- Sum of proper divisors (its aliquot sum) s(n): 1088809938
- 641340990 is an abundant number, because the sum of its proper divisors (1088809938) is greater than itself. Its abundance is 447468948
Bases of 641340990
- Binary: 1001100011101000010110001111102
- Hexadecimal: 0x263A163E
- Base-36: ALU5VI
Squares and roots of 641340990
- 641340990 squared (6413409902) is 411318265454180100
- 641340990 cubed (6413409903) is 263795263571466664972299000
-
The
square root of 641340990 is 25324.7110546201 -
The
cube root of 641340990 is 862.3753468247
Scales and comparisons
How big is 641340990?- 641,340,990 seconds is equal to 20 years, 20 weeks, 2 days, 22 hours, 16 minutes, 30 seconds.
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To count from 1 to 641,340,990 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 641340990 cubic inches would be around 71.9 feet tall.
Recreational maths with 641340990
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