81998620016000
81,998,620,016,000 is an even composite number composed of four prime numbers multiplied together.
81998620016000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 81998620016000:
27 × 53 × 23 × 222822337
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 23 × 222822337)See below for interesting mathematical facts about the number 81998620016000 from the Numbermatics database.
Names of 81998620016000
- Cardinal: 81998620016000 can be written as Eighty-one trillion, nine hundred ninety-eight billion, six hundred twenty million, sixteen thousand.
Scientific notation
- Scientific notation: 8.1998620016 × 1013
Factors of 81998620016000
Divisors of 81998620016000
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 4 5 8 10 16 20 23 25 32 40 46 50 64 80 92 100 115 125 128 160 184 200 230 250 320 368 400 460 500 575 640 736 800 920 1000 1150 1472 1600 1840 2000 2300 2875 2944 3200 3680 4000 4600 5750 7360 8000 9200 11500 14720 16000 18400 23000 36800 46000 73600 92000 184000 368000 222822337 445644674 891289348 1114111685 1782578696 2228223370 3565157392 4456446740 5124913751 5570558425 7130314784 8912893480 10249827502 11141116850 14260629568 17825786960 20499655004 22282233700 25624568755 27852792125 28521259136 35651573920 40999310008 44564467400 51249137510 55705584250 71303147840 81998620016 89128934800 102498275020 111411168500 128122843775 142606295680 163997240032 178257869600 204996550040 222822337000 256245687550 327994480064 356515739200 409993100080 445644674000 512491375100 640614218875 655988960128 713031478400 819986200160 891289348000 1024982750200 1281228437750 1639972400320 1782578696000 2049965500400 2562456875500 3279944800640 3565157392000 4099931000800 5124913751000 8199862001600 10249827502000 16399724003200 20499655004000 40999310008000 81998620016000
- Sum of all divisors σ(n): 212732942535360
- Sum of proper divisors (its aliquot sum) s(n): 130734322519360
- 81998620016000 is an abundant number, because the sum of its proper divisors (130734322519360) is greater than itself. Its abundance is 48735702503360
Bases of 81998620016000
- Binary: 100101010010011110010101001111000111101100000002
- Hexadecimal: 0x4A93CA9E3D80
- Base-36: T2DN97RSW
Squares and roots of 81998620016000
- 81998620016000 squared (819986200160002) is 6723773684528355840256000000
- 81998620016000 cubed (819986200160003) is 551340163431220908722386140164096000000000
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The
square root of 81998620016000 is 9055308.9409472937 -
The
cube root of 81998620016000 is 43444.5711443297
Scales and comparisons
How big is 81998620016000?- 81,998,620,016,000 seconds is equal to 2,607,302 years, 24 weeks, 6 days, 53 minutes, 20 seconds.
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To count from 1 to 81,998,620,016,000 would take you about six million, five hundred eighteen thousand, two hundred fifty-six 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 81998620016000 cubic inches would be around 3620.4 feet tall.
Recreational maths with 81998620016000
- 81998620016000 backwards is 00061002689918
- 81998620016000 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 81998620016000's digits is 50
- More coming soon!
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