30978240
30,978,240 is an even composite number composed of five prime numbers multiplied together.
30978240 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 30978240:
26 × 3 × 5 × 232 × 61
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 23 × 23 × 61)See below for interesting mathematical facts about the number 30978240 from the Numbermatics database.
Names of 30978240
- Cardinal: 30978240 can be written as Thirty million, nine hundred seventy-eight thousand, two hundred forty.
Scientific notation
- Scientific notation: 3.097824 × 107
Factors of 30978240
Divisors of 30978240
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 32 40 46 48 60 61 64 69 80 92 96 115 120 122 138 160 183 184 192 230 240 244 276 305 320 345 366 368 460 480 488 529 552 610 690 732 736 915 920 960 976 1058 1104 1220 1380 1403 1464 1472 1587 1830 1840 1952 2116 2208 2440 2645 2760 2806 2928 3174 3660 3680 3904 4209 4232 4416 4880 5290 5520 5612 5856 6348 7015 7320 7360 7935 8418 8464 9760 10580 11040 11224 11712 12696 14030 14640 15870 16836 16928 19520 21045 21160 22080 22448 25392 28060 29280 31740 32269 33672 33856 42090 42320 44896 50784 56120 58560 63480 64538 67344 84180 84640 89792 96807 101568 112240 126960 129076 134688 161345 168360 169280 193614 224480 253920 258152 269376 322690 336720 387228 448960 484035 507840 516304 645380 673440 774456 968070 1032608 1290760 1346880 1548912 1936140 2065216 2581520 3097824 3872280 5163040 6195648 7744560 10326080 15489120 30978240
- Sum of all divisors σ(n): 104503728
- Sum of proper divisors (its aliquot sum) s(n): 73525488
- 30978240 is an abundant number, because the sum of its proper divisors (73525488) is greater than itself. Its abundance is 42547248
Bases of 30978240
- Binary: 11101100010110000110000002
- Hexadecimal: 0x1D8B0C0
- Base-36: IFYYO
Squares and roots of 30978240
- 30978240 squared (309782402) is 959651353497600
- 30978240 cubed (309782403) is 29728309944973492224000
-
The
square root of 30978240 is 5565.8099141095 -
The
cube root of 30978240 is 314.0645464831
Scales and comparisons
How big is 30978240?- 30,978,240 seconds is equal to 51 weeks, 1 day, 13 hours, 4 minutes.
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To count from 1 to 30,978,240 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 30978240 cubic inches would be around 26.2 feet tall.
Recreational maths with 30978240
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The information we have on file for 30978240 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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