81138120000
81,138,120,000 is an even composite number composed of five prime numbers multiplied together.
81138120000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred twenty divisors.
Prime factorization of 81138120000:
26 × 3 × 54 × 72 × 13799
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 5 × 5 × 7 × 7 × 13799)See below for interesting mathematical facts about the number 81138120000 from the Numbermatics database.
Names of 81138120000
- Cardinal: 81138120000 can be written as Eighty-one billion, one hundred thirty-eight million, one hundred twenty thousand.
Scientific notation
- Scientific notation: 8.113812 × 1010
Factors of 81138120000
Divisors of 81138120000
- Number of divisors d(n): 420
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 32 35 40 42 48 49 50 56 60 64 70 75 80 84 96 98 100 105 112 120 125 140 147 150 160 168 175 192 196 200 210 224 240 245 250 280 294 300 320 336 350 375 392 400 420 448 480 490 500 525 560 588 600 625 672 700 735 750 784 800 840 875 960 980 1000 1050 1120 1176 1200 1225 1250 1344 1400 1470 1500 1568 1600 1680 1750 1875 1960 2000 2100 2240 2352 2400 2450 2500 2625 2800 2940 3000 3136 3360 3500 3675 3750 3920 4000 4200 4375 4704 4800 4900 5000 5250 5600 5880 6000 6125 6720 7000 7350 7500 7840 8000 8400 8750 9408 9800 10000 10500 11200 11760 12000 12250 13125 13799 14000 14700 15000 15680 16800 17500 18375 19600 20000 21000 23520 24000 24500 26250 27598 28000 29400 30000 30625 33600 35000 36750 39200 40000 41397 42000 47040 49000 52500 55196 56000 58800 60000 61250 68995 70000 73500 78400 82794 84000 91875 96593 98000 105000 110392 117600 120000 122500 137990 140000 147000 165588 168000 183750 193186 196000 206985 210000 220784 235200 245000 275980 280000 289779 294000 331176 344975 367500 386372 392000 413970 420000 441568 482965 490000 551960 579558 588000 662352 676151 689950 735000 772744 827940 840000 883136 965930 980000 1034925 1103920 1159116 1176000 1324704 1352302 1379900 1448895 1470000 1545488 1655880 1724875 1931860 1960000 2028453 2069850 2207840 2318232 2414825 2649408 2704604 2759800 2897790 2940000 3090976 3311760 3380755 3449750 3863720 4056906 4139700 4415680 4636464 4829650 5174625 5409208 5519600 5795580 5880000 6181952 6623520 6761510 6899500 7244475 7727440 8113812 8279400 8624375 9272928 9659300 10142265 10349250 10818416 11039200 11591160 12074125 13247040 13523020 13799000 14488950 15454880 16227624 16558800 16903775 17248750 18545856 19318600 20284530 20698500 21636832 22078400 23182320 24148250 25873125 27046040 27598000 28977900 30909760 32455248 33117600 33807550 34497500 36222375 38637200 40569060 41397000 43273664 46364640 48296500 50711325 51746250 54092080 55196000 57955800 60370625 64910496 66235200 67615100 68995000 72444750 77274400 81138120 82794000 84518875 92729280 96593000 101422650 103492500 108184160 110392000 115911600 120741250 129820992 135230200 137990000 144889500 154548800 162276240 165588000 169037750 181111875 193186000 202845300 206985000 216368320 231823200 241482500 253556625 270460400 275980000 289779000 324552480 331176000 338075500 362223750 386372000 405690600 413970000 422594375 463646400 482965000 507113250 540920800 551960000 579558000 649104960 676151000 724447500 772744000 811381200 827940000 845188750 965930000 1014226500 1081841600 1159116000 1267783125 1352302000 1448895000 1622762400 1655880000 1690377500 1931860000 2028453000 2318232000 2535566250 2704604000 2897790000 3245524800 3380755000 3863720000 4056906000 5071132500 5409208000 5795580000 6761510000 8113812000 10142265000 11591160000 13523020000 16227624000 20284530000 27046040000 40569060000 81138120000
- Sum of all divisors σ(n): 312081976800
- Sum of proper divisors (its aliquot sum) s(n): 230943856800
- 81138120000 is an abundant number, because the sum of its proper divisors (230943856800) is greater than itself. Its abundance is 149805736800
Bases of 81138120000
- Binary: 10010111001000011010101110101010000002
- Hexadecimal: 0x12E4357540
- Base-36: 119VJI2O
Squares and roots of 81138120000
- 81138120000 squared (811381200002) is 6583394517134400000000
- 81138120000 cubed (811381200003) is 534164254338593003328000000000000
-
The
square root of 81138120000 is 284847.5381673503 -
The
cube root of 81138120000 is 4329.2066169899
Scales and comparisons
How big is 81138120000?- 81,138,120,000 seconds is equal to 2,579 years, 48 weeks, 6 days, 14 hours, 40 minutes.
-
To count from 1 to 81,138,120,000 would take you about five thousand, one hundred fifty-nine 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 81138120000 cubic inches would be around 360.8 feet tall.
Recreational maths with 81138120000
- 81138120000 backwards is 00002183118
- 81138120000 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81138120000's digits is 24
- More coming soon!
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The information we have on file for 81138120000 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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