990990945
990,990,945 is an odd composite number composed of five prime numbers multiplied together.
990990945 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 990990945:
32 × 5 × 72 × 17 × 26437
(3 × 3 × 5 × 7 × 7 × 17 × 26437)See below for interesting mathematical facts about the number 990990945 from the Numbermatics database.
Names of 990990945
- Cardinal: 990990945 can be written as Nine hundred ninety million, nine hundred ninety thousand, nine hundred forty-five.
Scientific notation
- Scientific notation: 9.90990945 × 108
Factors of 990990945
Divisors of 990990945
- Number of divisors d(n): 72
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Complete list of divisors:
1 3 5 7 9 15 17 21 35 45 49 51 63 85 105 119 147 153 245 255 315 357 441 595 735 765 833 1071 1785 2205 2499 4165 5355 7497 12495 26437 37485 79311 132185 185059 237933 396555 449429 555177 925295 1189665 1295413 1348287 1665531 2247145 2775885 3146003 3886239 4044861 6477065 6741435 8327655 9438009 11658717 15730015 19431195 20224305 22022021 28314027 47190045 58293585 66066063 110110105 141570135 198198189 330330315 990990945
- Sum of all divisors σ(n): 2115780264
- Sum of proper divisors (its aliquot sum) s(n): 1124789319
- 990990945 is an abundant number, because the sum of its proper divisors (1124789319) is greater than itself. Its abundance is 133798374
Bases of 990990945
- Binary: 1110110001000101010010011000012
- Hexadecimal: 0x3B115261
- Base-36: GE0DI9
Squares and roots of 990990945
- 990990945 squared (9909909452) is 982063053071993025
- 990990945 cubed (9909909453) is 973215593013399520878158625
-
The
square root of 990990945 is 31480.0086562885 -
The
cube root of 990990945 is 996.9879181391
Scales and comparisons
How big is 990990945?- 990,990,945 seconds is equal to 31 years, 26 weeks, 3 days, 19 hours, 15 minutes, 45 seconds.
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To count from 1 to 990,990,945 would take you about forty-seven 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 990990945 cubic inches would be around 83.1 feet tall.
Recreational maths with 990990945
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The information we have on file for 990990945 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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