9901990
9,901,990 is an even composite number composed of six prime numbers multiplied together.
9901990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 9901990:
2 × 5 × 7 × 17 × 53 × 157
See below for interesting mathematical facts about the number 9901990 from the Numbermatics database.
Names of 9901990
- Cardinal: 9901990 can be written as Nine million, nine hundred one thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 9.90199 × 106
Factors of 9901990
Divisors of 9901990
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 5 7 10 14 17 34 35 53 70 85 106 119 157 170 238 265 314 371 530 595 742 785 901 1099 1190 1570 1802 1855 2198 2669 3710 4505 5338 5495 6307 8321 9010 10990 12614 13345 16642 18683 26690 31535 37366 41605 58247 63070 83210 93415 116494 141457 186830 282914 291235 582470 707285 990199 1414570 1980398 4950995 9901990
- Sum of all divisors σ(n): 22114944
- Sum of proper divisors (its aliquot sum) s(n): 12212954
- 9901990 is an abundant number, because the sum of its proper divisors (12212954) is greater than itself. Its abundance is 2310964
Bases of 9901990
- Binary: 1001011100010111101001102
- Hexadecimal: 0x9717A6
- Base-36: 5W8FA
Squares and roots of 9901990
- 9901990 squared (99019902) is 98049405960100
- 9901990 cubed (99019903) is 970884237322850599000
-
The
square root of 9901990 is 3146.7427603793 -
The
cube root of 9901990 is 214.7373030965
Scales and comparisons
How big is 9901990?- 9,901,990 seconds is equal to 16 weeks, 2 days, 14 hours, 33 minutes, 10 seconds.
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To count from 1 to 9,901,990 would take you about twenty-four weeks!
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 9901990 cubic inches would be around 17.9 feet tall.
Recreational maths with 9901990
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The information we have on file for 9901990 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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