28390400
28,390,400 is an even composite number composed of three prime numbers multiplied together.
What does the number 28390400 look like?
This visualization shows the relationship between its 3 prime factors (large circles) and 66 divisors.
28390400 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixty-six divisors.
Prime factorization of 28390400:
210 × 52 × 1109
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 1109)See below for interesting mathematical facts about the number 28390400 from the Numbermatics database.
Names of 28390400
- Cardinal: 28390400 can be written as Twenty-eight million, three hundred ninety thousand, four hundred.
Scientific notation
- Scientific notation: 2.83904 × 107
Factors of 28390400
Divisors of 28390400
- Number of divisors d(n): 66
-
Complete list of divisors:
1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 512 640 800 1024 1109 1280 1600 2218 2560 3200 4436 5120 5545 6400 8872 11090 12800 17744 22180 25600 27725 35488 44360 55450 70976 88720 110900 141952 177440 221800 283904 354880 443600 567808 709760 887200 1135616 1419520 1774400 2839040 3548800 5678080 7097600 14195200 28390400
- Sum of all divisors σ(n): 70437270
- Sum of proper divisors (its aliquot sum) s(n): 42046870
- 28390400 is an abundant number, because the sum of its proper divisors (42046870) is greater than itself. Its abundance is 13656470
Bases of 28390400
- Binary: 11011000100110100000000002
- Hexadecimal: 0x1B13400
- Base-36: GWI68
Squares and roots of 28390400
- 28390400 squared (283904002) is 806014812160000
- 28390400 cubed (283904003) is 22883082923147264000000
-
The
square root of 28390400 is 5328.2642577109 -
The
cube root of 28390400 is 305.0636792595
Scales and comparisons
How big is 28390400?- 28,390,400 seconds is equal to 46 weeks, 6 days, 14 hours, 13 minutes, 20 seconds.
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To count from 1 to 28,390,400 would take you about eighteen 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 28390400 cubic inches would be around 25.4 feet tall.
Recreational maths with 28390400
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The information we have on file for 28390400 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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