30728750
30,728,750 is an even composite number composed of five prime numbers multiplied together.
30728750 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 30728750:
2 × 54 × 13 × 31 × 61
(2 × 5 × 5 × 5 × 5 × 13 × 31 × 61)See below for interesting mathematical facts about the number 30728750 from the Numbermatics database.
Names of 30728750
- Cardinal: 30728750 can be written as Thirty million, seven hundred twenty-eight thousand, seven hundred fifty.
Scientific notation
- Scientific notation: 3.072875 × 107
Factors of 30728750
Divisors of 30728750
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 5 10 13 25 26 31 50 61 62 65 122 125 130 155 250 305 310 325 403 610 625 650 775 793 806 1250 1525 1550 1586 1625 1891 2015 3050 3250 3782 3875 3965 4030 7625 7750 7930 8125 9455 10075 15250 16250 18910 19375 19825 20150 24583 38125 38750 39650 47275 49166 50375 76250 94550 99125 100750 122915 198250 236375 245830 251875 472750 495625 503750 614575 991250 1181875 1229150 2363750 3072875 6145750 15364375 30728750
- Sum of all divisors σ(n): 65079168
- Sum of proper divisors (its aliquot sum) s(n): 34350418
- 30728750 is an abundant number, because the sum of its proper divisors (34350418) is greater than itself. Its abundance is 3621668
Bases of 30728750
- Binary: 11101010011100010001011102
- Hexadecimal: 0x1D4E22E
- Base-36: IAMGE
Squares and roots of 30728750
- 30728750 squared (307287502) is 944256076562500
- 30728750 cubed (307287503) is 29015808912669921875000
-
The
square root of 30728750 is 5543.3518740921 -
The
cube root of 30728750 is 313.2191437935
Scales and comparisons
How big is 30728750?- 30,728,750 seconds is equal to 50 weeks, 5 days, 15 hours, 45 minutes, 50 seconds.
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To count from 1 to 30,728,750 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 30728750 cubic inches would be around 26.1 feet tall.
Recreational maths with 30728750
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The information we have on file for 30728750 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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