28740990
28,740,990 is an even composite number composed of six prime numbers multiplied together.
28740990 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 28740990:
2 × 3 × 5 × 67 × 79 × 181
See below for interesting mathematical facts about the number 28740990 from the Numbermatics database.
Names of 28740990
- Cardinal: 28740990 can be written as Twenty-eight million, seven hundred forty thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.874099 × 107
Factors of 28740990
Divisors of 28740990
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 15 30 67 79 134 158 181 201 237 335 362 395 402 474 543 670 790 905 1005 1086 1185 1810 2010 2370 2715 5293 5430 10586 12127 14299 15879 24254 26465 28598 31758 36381 42897 52930 60635 71495 72762 79395 85794 121270 142990 158790 181905 214485 363810 428970 958033 1916066 2874099 4790165 5748198 9580330 14370495 28740990
- Sum of all divisors σ(n): 71285760
- Sum of proper divisors (its aliquot sum) s(n): 42544770
- 28740990 is an abundant number, because the sum of its proper divisors (42544770) is greater than itself. Its abundance is 13803780
Bases of 28740990
- Binary: 11011011010001101011111102
- Hexadecimal: 0x1B68D7E
- Base-36: H40OU
Squares and roots of 28740990
- 28740990 squared (287409902) is 826044506180100
- 28740990 cubed (287409903) is 23741336891677192299000
-
The
square root of 28740990 is 5361.0623947125 -
The
cube root of 28740990 is 306.3142783305
Scales and comparisons
How big is 28740990?- 28,740,990 seconds is equal to 47 weeks, 3 days, 15 hours, 36 minutes, 30 seconds.
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To count from 1 to 28,740,990 would take you about nineteen 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 28740990 cubic inches would be around 25.5 feet tall.
Recreational maths with 28740990
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The information we have on file for 28740990 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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