72142840
72,142,840 is an even composite number composed of six prime numbers multiplied together.
72142840 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 72142840:
23 × 5 × 7 × 11 × 59 × 397
(2 × 2 × 2 × 5 × 7 × 11 × 59 × 397)See below for interesting mathematical facts about the number 72142840 from the Numbermatics database.
Names of 72142840
- Cardinal: 72142840 can be written as Seventy-two million, one hundred forty-two thousand, eight hundred forty.
Scientific notation
- Scientific notation: 7.214284 × 107
Factors of 72142840
Divisors of 72142840
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 4 5 7 8 10 11 14 20 22 28 35 40 44 55 56 59 70 77 88 110 118 140 154 220 236 280 295 308 385 397 413 440 472 590 616 649 770 794 826 1180 1298 1540 1588 1652 1985 2065 2360 2596 2779 3080 3176 3245 3304 3970 4130 4367 4543 5192 5558 6490 7940 8260 8734 9086 11116 12980 13895 15880 16520 17468 18172 21835 22232 22715 23423 25960 27790 30569 34936 36344 43670 45430 46846 55580 61138 87340 90860 93692 111160 117115 122276 152845 163961 174680 181720 187384 234230 244552 257653 305690 327922 468460 515306 611380 655844 819805 936920 1030612 1222760 1288265 1311688 1639610 1803571 2061224 2576530 3279220 3607142 5153060 6558440 7214284 9017855 10306120 14428568 18035710 36071420 72142840
- Sum of all divisors σ(n): 206323200
- Sum of proper divisors (its aliquot sum) s(n): 134180360
- 72142840 is an abundant number, because the sum of its proper divisors (134180360) is greater than itself. Its abundance is 62037520
Bases of 72142840
- Binary: 1000100110011001111111110002
- Hexadecimal: 0x44CCFF8
- Base-36: 16Y9RS
Squares and roots of 72142840
- 72142840 squared (721428402) is 5204589363265600
- 72142840 cubed (721428403) is 375473857699772058304000
-
The
square root of 72142840 is 8493.6941315307 -
The
cube root of 72142840 is 416.2916932269
Scales and comparisons
How big is 72142840?- 72,142,840 seconds is equal to 2 years, 15 weeks, 1 day, 23 hours, 40 minutes, 40 seconds.
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To count from 1 to 72,142,840 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 72142840 cubic inches would be around 34.7 feet tall.
Recreational maths with 72142840
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The information we have on file for 72142840 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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