3998720
3,998,720 is an even composite number composed of four prime numbers multiplied together.
3998720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-eight divisors.
Prime factorization of 3998720:
210 × 5 × 11 × 71
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 71)See below for interesting mathematical facts about the number 3998720 from the Numbermatics database.
Names of 3998720
- Cardinal: 3998720 can be written as Three million, nine hundred ninety-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 3.99872 × 106
Factors of 3998720
Divisors of 3998720
- Number of divisors d(n): 88
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Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 71 80 88 110 128 142 160 176 220 256 284 320 352 355 440 512 568 640 704 710 781 880 1024 1136 1280 1408 1420 1562 1760 2272 2560 2816 2840 3124 3520 3905 4544 5120 5632 5680 6248 7040 7810 9088 11264 11360 12496 14080 15620 18176 22720 24992 28160 31240 36352 45440 49984 56320 62480 72704 90880 99968 124960 181760 199936 249920 363520 399872 499840 799744 999680 1999360 3998720
- Sum of all divisors σ(n): 10611648
- Sum of proper divisors (its aliquot sum) s(n): 6612928
- 3998720 is an abundant number, because the sum of its proper divisors (6612928) is greater than itself. Its abundance is 2614208
Bases of 3998720
- Binary: 11110100000100000000002
- Hexadecimal: 0x3D0400
- Base-36: 2DPFK
Squares and roots of 3998720
- 3998720 squared (39987202) is 15989761638400
- 3998720 cubed (39987203) is 63938579658702848000
-
The
square root of 3998720 is 1999.6799743961 -
The
cube root of 3998720 is 158.7231711125
Scales and comparisons
How big is 3998720?- 3,998,720 seconds is equal to 6 weeks, 4 days, 6 hours, 45 minutes, 20 seconds.
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To count from 1 to 3,998,720 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 3998720 cubic inches would be around 13.2 feet tall.
Recreational maths with 3998720
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The information we have on file for 3998720 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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