18929988
18,929,988 is an even composite number composed of five prime numbers multiplied together.
18929988 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 18929988:
22 × 32 × 7 × 11 × 6829
(2 × 2 × 3 × 3 × 7 × 11 × 6829)See below for interesting mathematical facts about the number 18929988 from the Numbermatics database.
Names of 18929988
- Cardinal: 18929988 can be written as Eighteen million, nine hundred twenty-nine thousand, nine hundred eighty-eight.
Scientific notation
- Scientific notation: 1.8929988 × 107
Factors of 18929988
Divisors of 18929988
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 63 66 77 84 99 126 132 154 198 231 252 308 396 462 693 924 1386 2772 6829 13658 20487 27316 40974 47803 61461 75119 81948 95606 122922 143409 150238 191212 225357 245844 286818 300476 430227 450714 525833 573636 676071 860454 901428 1051666 1352142 1577499 1720908 2103332 2704284 3154998 4732497 6309996 9464994 18929988
- Sum of all divisors σ(n): 59666880
- Sum of proper divisors (its aliquot sum) s(n): 40736892
- 18929988 is an abundant number, because the sum of its proper divisors (40736892) is greater than itself. Its abundance is 21806904
Bases of 18929988
- Binary: 10010000011011001010001002
- Hexadecimal: 0x120D944
- Base-36: B9QH0
Squares and roots of 18929988
- 18929988 squared (189299882) is 358344445680144
- 18929988 cubed (189299883) is 6783456056591777758272
-
The
square root of 18929988 is 4350.8606045241 -
The
cube root of 18929988 is 266.5120068463
Scales and comparisons
How big is 18929988?- 18,929,988 seconds is equal to 31 weeks, 2 days, 2 hours, 19 minutes, 48 seconds.
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To count from 1 to 18,929,988 would take you about forty-six 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 18929988 cubic inches would be around 22.2 feet tall.
Recreational maths with 18929988
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"Number 18929988 - Facts about the integer". Numbermatics.com. 2024. Web. 24 May 2024.
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The information we have on file for 18929988 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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