640243992000
640,243,992,000 is an even composite number composed of five prime numbers multiplied together.
640243992000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred twenty-four divisors.
Prime factorization of 640243992000:
26 × 3 × 53 × 31 × 860543
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 5 × 31 × 860543)See below for interesting mathematical facts about the number 640243992000 from the Numbermatics database.
Names of 640243992000
- Cardinal: 640243992000 can be written as Six hundred forty billion, two hundred forty-three million, nine hundred ninety-two thousand.
Scientific notation
- Scientific notation: 6.40243992 × 1011
Factors of 640243992000
Divisors of 640243992000
- Number of divisors d(n): 224
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 31 32 40 48 50 60 62 64 75 80 93 96 100 120 124 125 150 155 160 186 192 200 240 248 250 300 310 320 372 375 400 465 480 496 500 600 620 744 750 775 800 930 960 992 1000 1200 1240 1488 1500 1550 1600 1860 1984 2000 2325 2400 2480 2976 3000 3100 3720 3875 4000 4650 4800 4960 5952 6000 6200 7440 7750 8000 9300 9920 11625 12000 12400 14880 15500 18600 23250 24000 24800 29760 31000 37200 46500 49600 62000 74400 93000 124000 148800 186000 248000 372000 744000 860543 1721086 2581629 3442172 4302715 5163258 6884344 8605430 10326516 12908145 13768688 17210860 20653032 21513575 25816290 26676833 27537376 34421720 41306064 43027150 51632580 53353666 55074752 64540725 68843440 80030499 82612128 86054300 103265160 106707332 107567875 129081450 133384165 137686880 160060998 165224256 172108600 206530320 213414664 215135750 258162900 266768330 275373760 320121996 322703625 344217200 400152495 413060640 426829328 430271500 516325800 533536660 640243992 645407250 666920825 688434400 800304990 826121280 853658656 860543000 1032651600 1067073320 1280487984 1290814500 1333841650 1376868800 1600609980 1707317312 1721086000 2000762475 2065303200 2134146640 2560975968 2581629000 2667683300 3201219960 3334604125 3442172000 4001524950 4130606400 4268293280 5121951936 5163258000 5335366600 6402439920 6669208250 6884344000 8003049900 8536586560 10003812375 10326516000 10670733200 12804879840 13338416500 16006099800 20007624750 20653032000 21341466400 25609759680 26676833000 32012199600 40015249500 42682932800 53353666000 64024399200 80030499000 106707332000 128048798400 160060998000 213414664000 320121996000 640243992000
- Sum of all divisors σ(n): 2182284509184
- Sum of proper divisors (its aliquot sum) s(n): 1542040517184
- 640243992000 is an abundant number, because the sum of its proper divisors (1542040517184) is greater than itself. Its abundance is 901796525184
Bases of 640243992000
- Binary: 10010101000100011000010000000101110000002
- Hexadecimal: 0x95118405C0
- Base-36: 864GQPXC
Squares and roots of 640243992000
- 640243992000 squared (6402439920002) is 409912369292096064000000
- 640243992000 cubed (6402439920003) is 262443931685749798062847488000000000
-
The
square root of 640243992000 is 800152.4804685665 -
The
cube root of 640243992000 is 8618.8337560483
Scales and comparisons
How big is 640243992000?- 640,243,992,000 seconds is equal to 20,357 years, 40 weeks, 3 days, 9 hours, 20 minutes.
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To count from 1 to 640,243,992,000 would take you about forty thousand, seven hundred fifteen 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 640243992000 cubic inches would be around 718.2 feet tall.
Recreational maths with 640243992000
- 640243992000 backwards is 000299342046
- The number of decimal digits it has is: 12
- The sum of 640243992000's digits is 39
- More coming soon!
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