28813440
28,813,440 is an even composite number composed of five prime numbers multiplied together.
28813440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 28813440:
27 × 3 × 5 × 43 × 349
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 43 × 349)See below for interesting mathematical facts about the number 28813440 from the Numbermatics database.
Names of 28813440
- Cardinal: 28813440 can be written as Twenty-eight million, eight hundred thirteen thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.881344 × 107
Factors of 28813440
Divisors of 28813440
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 43 48 60 64 80 86 96 120 128 129 160 172 192 215 240 258 320 344 349 384 430 480 516 640 645 688 698 860 960 1032 1047 1290 1376 1396 1720 1745 1920 2064 2094 2580 2752 2792 3440 3490 4128 4188 5160 5235 5504 5584 6880 6980 8256 8376 10320 10470 11168 13760 13960 15007 16512 16752 20640 20940 22336 27520 27920 30014 33504 41280 41880 44672 45021 55840 60028 67008 75035 82560 83760 90042 111680 120056 134016 150070 167520 180084 223360 225105 240112 300140 335040 360168 450210 480224 600280 670080 720336 900420 960448 1200560 1440672 1800840 1920896 2401120 2881344 3601680 4802240 5762688 7203360 9604480 14406720 28813440
- Sum of all divisors σ(n): 94248000
- Sum of proper divisors (its aliquot sum) s(n): 65434560
- 28813440 is an abundant number, because the sum of its proper divisors (65434560) is greater than itself. Its abundance is 36621120
Bases of 28813440
- Binary: 11011011110101000100000002
- Hexadecimal: 0x1B7A880
- Base-36: H5KLC
Squares and roots of 28813440
- 28813440 squared (288134402) is 830214324633600
- 28813440 cubed (288134403) is 23921330629970755584000
-
The
square root of 28813440 is 5367.8151980111 -
The
cube root of 28813440 is 306.5714470181
Scales and comparisons
How big is 28813440?- 28,813,440 seconds is equal to 47 weeks, 4 days, 11 hours, 44 minutes.
-
To count from 1 to 28,813,440 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 28813440 cubic inches would be around 25.5 feet tall.
Recreational maths with 28813440
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The information we have on file for 28813440 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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