30745728
30,745,728 is an even composite number composed of four prime numbers multiplied together.
30745728 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 30745728:
27 × 32 × 13 × 2053
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 13 × 2053)See below for interesting mathematical facts about the number 30745728 from the Numbermatics database.
Names of 30745728
- Cardinal: 30745728 can be written as Thirty million, seven hundred forty-five thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 3.0745728 × 107
Factors of 30745728
Divisors of 30745728
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 104 117 128 144 156 192 208 234 288 312 384 416 468 576 624 832 936 1152 1248 1664 1872 2053 2496 3744 4106 4992 6159 7488 8212 12318 14976 16424 18477 24636 26689 32848 36954 49272 53378 65696 73908 80067 98544 106756 131392 147816 160134 197088 213512 240201 262784 295632 320268 394176 427024 480402 591264 640536 788352 854048 960804 1182528 1281072 1708096 1921608 2365056 2562144 3416192 3843216 5124288 7686432 10248576 15372864 30745728
- Sum of all divisors σ(n): 95326140
- Sum of proper divisors (its aliquot sum) s(n): 64580412
- 30745728 is an abundant number, because the sum of its proper divisors (64580412) is greater than itself. Its abundance is 33834684
Bases of 30745728
- Binary: 11101010100100100100000002
- Hexadecimal: 0x1D52480
- Base-36: IAZK0
Squares and roots of 30745728
- 30745728 squared (307457282) is 945299790249984
- 30745728 cubed (307457283) is 29063930229483060068352
-
The
square root of 30745728 is 5544.8830465575 -
The
cube root of 30745728 is 313.2768189407
Scales and comparisons
How big is 30745728?- 30,745,728 seconds is equal to 50 weeks, 5 days, 20 hours, 28 minutes, 48 seconds.
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To count from 1 to 30,745,728 would take you about twenty-four 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 30745728 cubic inches would be around 26.1 feet tall.
Recreational maths with 30745728
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The information we have on file for 30745728 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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