30728100
30,728,100 is an even composite number composed of five prime numbers multiplied together.
30728100 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 30728100:
22 × 3 × 52 × 13 × 7879
(2 × 2 × 3 × 5 × 5 × 13 × 7879)See below for interesting mathematical facts about the number 30728100 from the Numbermatics database.
Names of 30728100
- Cardinal: 30728100 can be written as Thirty million, seven hundred twenty-eight thousand, one hundred.
Scientific notation
- Scientific notation: 3.07281 × 107
Factors of 30728100
Divisors of 30728100
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 5 6 10 12 13 15 20 25 26 30 39 50 52 60 65 75 78 100 130 150 156 195 260 300 325 390 650 780 975 1300 1950 3900 7879 15758 23637 31516 39395 47274 78790 94548 102427 118185 157580 196975 204854 236370 307281 393950 409708 472740 512135 590925 614562 787900 1024270 1181850 1229124 1536405 2048540 2363700 2560675 3072810 5121350 6145620 7682025 10242700 15364050 30728100
- Sum of all divisors σ(n): 95757760
- Sum of proper divisors (its aliquot sum) s(n): 65029660
- 30728100 is an abundant number, because the sum of its proper divisors (65029660) is greater than itself. Its abundance is 34301560
Bases of 30728100
- Binary: 11101010011011111101001002
- Hexadecimal: 0x1D4DFA4
- Base-36: IALYC
Squares and roots of 30728100
- 30728100 squared (307281002) is 944216129610000
- 30728100 cubed (307281003) is 29013967652269041000000
-
The
square root of 30728100 is 5543.2932449943 -
The
cube root of 30728100 is 313.2169352877
Scales and comparisons
How big is 30728100?- 30,728,100 seconds is equal to 50 weeks, 5 days, 15 hours, 35 minutes.
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To count from 1 to 30,728,100 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 30728100 cubic inches would be around 26.1 feet tall.
Recreational maths with 30728100
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The information we have on file for 30728100 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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