30642840
30,642,840 is an even composite number composed of five prime numbers multiplied together.
30642840 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 30642840:
23 × 33 × 5 × 17 × 1669
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 17 × 1669)See below for interesting mathematical facts about the number 30642840 from the Numbermatics database.
Names of 30642840
- Cardinal: 30642840 can be written as Thirty million, six hundred forty-two thousand, eight hundred forty.
Scientific notation
- Scientific notation: 3.064284 × 107
Factors of 30642840
Divisors of 30642840
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 27 30 34 36 40 45 51 54 60 68 72 85 90 102 108 120 135 136 153 170 180 204 216 255 270 306 340 360 408 459 510 540 612 680 765 918 1020 1080 1224 1530 1669 1836 2040 2295 3060 3338 3672 4590 5007 6120 6676 8345 9180 10014 13352 15021 16690 18360 20028 25035 28373 30042 33380 40056 45063 50070 56746 60084 66760 75105 85119 90126 100140 113492 120168 141865 150210 170238 180252 200280 225315 226984 255357 283730 300420 340476 360504 425595 450630 510714 567460 600840 680952 766071 851190 901260 1021428 1134920 1276785 1532142 1702380 1802520 2042856 2553570 3064284 3404760 3830355 5107140 6128568 7660710 10214280 15321420 30642840
- Sum of all divisors σ(n): 108216000
- Sum of proper divisors (its aliquot sum) s(n): 77573160
- 30642840 is an abundant number, because the sum of its proper divisors (77573160) is greater than itself. Its abundance is 46930320
Bases of 30642840
- Binary: 11101001110010010100110002
- Hexadecimal: 0x1D39298
- Base-36: I8S60
Squares and roots of 30642840
- 30642840 squared (306428402) is 938983643265600
- 30642840 cubed (306428403) is 28773125543204858304000
-
The
square root of 30642840 is 5535.5975287227 -
The
cube root of 30642840 is 312.9269768779
Scales and comparisons
How big is 30642840?- 30,642,840 seconds is equal to 50 weeks, 4 days, 15 hours, 54 minutes.
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To count from 1 to 30,642,840 would take you about twenty-three 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 30642840 cubic inches would be around 26.1 feet tall.
Recreational maths with 30642840
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The information we have on file for 30642840 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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