3991428
3,991,428 is an even composite number composed of five prime numbers multiplied together.
What does the number 3991428 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 72 divisors.
3991428 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 3991428:
22 × 32 × 7 × 47 × 337
(2 × 2 × 3 × 3 × 7 × 47 × 337)See below for interesting mathematical facts about the number 3991428 from the Numbermatics database.
Names of 3991428
- Cardinal: 3991428 can be written as Three million, nine hundred ninety-one thousand, four hundred twenty-eight.
Scientific notation
- Scientific notation: 3.991428 × 106
Factors of 3991428
Divisors of 3991428
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 21 28 36 42 47 63 84 94 126 141 188 252 282 329 337 423 564 658 674 846 987 1011 1316 1348 1692 1974 2022 2359 2961 3033 3948 4044 4718 5922 6066 7077 9436 11844 12132 14154 15839 21231 28308 31678 42462 47517 63356 84924 95034 110873 142551 190068 221746 285102 332619 443492 570204 665238 997857 1330476 1995714 3991428
- Sum of all divisors σ(n): 11811072
- Sum of proper divisors (its aliquot sum) s(n): 7819644
- 3991428 is an abundant number, because the sum of its proper divisors (7819644) is greater than itself. Its abundance is 3828216
Bases of 3991428
- Binary: 11110011100111100001002
- Hexadecimal: 0x3CE784
- Base-36: 2DJT0
Squares and roots of 3991428
- 3991428 squared (39914282) is 15931497479184
- 3991428 cubed (39914283) is 63589425120344434752
-
The
square root of 3991428 is 1997.8558506557 -
The
cube root of 3991428 is 158.6266307513
Scales and comparisons
How big is 3991428?- 3,991,428 seconds is equal to 6 weeks, 4 days, 4 hours, 43 minutes, 48 seconds.
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To count from 1 to 3,991,428 would take you about nine 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 3991428 cubic inches would be around 13.2 feet tall.
Recreational maths with 3991428
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The information we have on file for 3991428 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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