728135040
728,135,040 is an even composite number composed of five prime numbers multiplied together.
728135040 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 728135040:
27 × 3 × 5 × 61 × 6217
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 61 × 6217)See below for interesting mathematical facts about the number 728135040 from the Numbermatics database.
Names of 728135040
- Cardinal: 728135040 can be written as Seven hundred twenty-eight million, one hundred thirty-five thousand and forty.
Scientific notation
- Scientific notation: 7.2813504 × 108
Factors of 728135040
Divisors of 728135040
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 61 64 80 96 120 122 128 160 183 192 240 244 305 320 366 384 480 488 610 640 732 915 960 976 1220 1464 1830 1920 1952 2440 2928 3660 3904 4880 5856 6217 7320 7808 9760 11712 12434 14640 18651 19520 23424 24868 29280 31085 37302 39040 49736 58560 62170 74604 93255 99472 117120 124340 149208 186510 198944 248680 298416 373020 379237 397888 497360 596832 746040 758474 795776 994720 1137711 1193664 1492080 1516948 1896185 1989440 2275422 2387328 2984160 3033896 3792370 3978880 4550844 5688555 5968320 6067792 7584740 9101688 11377110 11936640 12135584 15169480 18203376 22754220 24271168 30338960 36406752 45508440 48542336 60677920 72813504 91016880 121355840 145627008 182033760 242711680 364067520 728135040
- Sum of all divisors σ(n): 2359357920
- Sum of proper divisors (its aliquot sum) s(n): 1631222880
- 728135040 is an abundant number, because the sum of its proper divisors (1631222880) is greater than itself. Its abundance is 903087840
Bases of 728135040
- Binary: 1010110110011001110101100000002
- Hexadecimal: 0x2B667580
- Base-36: C1IGLC
Squares and roots of 728135040
- 728135040 squared (7281350402) is 530180636475801600
- 728135040 cubed (7281350403) is 386043098947533257048064000
-
The
square root of 728135040 is 26983.9774681197 -
The
cube root of 728135040 is 899.6439085111
Scales and comparisons
How big is 728135040?- 728,135,040 seconds is equal to 23 years, 7 weeks, 6 days, 11 hours, 44 minutes.
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To count from 1 to 728,135,040 would take you about thirty-four years!
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 728135040 cubic inches would be around 75 feet tall.
Recreational maths with 728135040
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