68130720
68,130,720 is an even composite number composed of five prime numbers multiplied together.
68130720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 68130720:
25 × 34 × 5 × 7 × 751
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 7 × 751)See below for interesting mathematical facts about the number 68130720 from the Numbermatics database.
Names of 68130720
- Cardinal: 68130720 can be written as Sixty-eight million, one hundred thirty thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 6.813072 × 107
Factors of 68130720
Divisors of 68130720
- Number of divisors d(n): 240
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 70 72 80 81 84 90 96 105 108 112 120 126 135 140 144 160 162 168 180 189 210 216 224 240 252 270 280 288 315 324 336 360 378 405 420 432 480 504 540 560 567 630 648 672 720 751 756 810 840 864 945 1008 1080 1120 1134 1260 1296 1440 1502 1512 1620 1680 1890 2016 2160 2253 2268 2520 2592 2835 3004 3024 3240 3360 3755 3780 4320 4506 4536 5040 5257 5670 6008 6048 6480 6759 7510 7560 9012 9072 10080 10514 11265 11340 12016 12960 13518 15020 15120 15771 18024 18144 20277 21028 22530 22680 24032 26285 27036 30040 30240 31542 33795 36048 40554 42056 45060 45360 47313 52570 54072 60080 60831 63084 67590 72096 78855 81108 84112 90120 90720 94626 101385 105140 108144 120160 121662 126168 135180 141939 157710 162216 168224 180240 189252 202770 210280 216288 236565 243324 252336 270360 283878 304155 315420 324432 360480 378504 405540 420560 425817 473130 486648 504672 540720 567756 608310 630840 648864 709695 757008 811080 841120 851634 946260 973296 1081440 1135512 1216620 1261680 1419390 1514016 1622160 1703268 1892520 1946592 2129085 2271024 2433240 2523360 2838780 3244320 3406536 3785040 4258170 4542048 4866480 5677560 6813072 7570080 8516340 9732960 11355120 13626144 17032680 22710240 34065360 68130720
- Sum of all divisors σ(n): 275159808
- Sum of proper divisors (its aliquot sum) s(n): 207029088
- 68130720 is an abundant number, because the sum of its proper divisors (207029088) is greater than itself. Its abundance is 138898368
Bases of 68130720
- Binary: 1000000111110010111101000002
- Hexadecimal: 0x40F97A0
- Base-36: 14KA00
Squares and roots of 68130720
- 68130720 squared (681307202) is 4641795007718400
- 68130720 cubed (681307203) is 316248835968260149248000
-
The
square root of 68130720 is 8254.1335099451 -
The
cube root of 68130720 is 408.4268888323
Scales and comparisons
How big is 68130720?- 68,130,720 seconds is equal to 2 years, 8 weeks, 4 days, 13 hours, 12 minutes.
-
To count from 1 to 68,130,720 would take you about three 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 68130720 cubic inches would be around 34 feet tall.
Recreational maths with 68130720
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