81213632640000
81,213,632,640,000 is an even composite number composed of five prime numbers multiplied together.
81213632640000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two thousand, four hundred twenty divisors.
Prime factorization of 81213632640000:
210 × 310 × 54 × 7 × 307
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 5 × 5 × 7 × 307)See below for interesting mathematical facts about the number 81213632640000 from the Numbermatics database.
Names of 81213632640000
- Cardinal: 81213632640000 can be written as Eighty-one trillion, two hundred thirteen billion, six hundred thirty-two million, six hundred forty thousand.
Scientific notation
- Scientific notation: 8.121363264 × 1013
Factors of 81213632640000
Divisors of 81213632640000
- Number of divisors d(n): 2420
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 27 28 30 32 35 36 40 42 45 48 50 54 56 60 63 64 70 72 75 80 81 84 90 96 100 105 108 112 120 125 126 128 135 140 144 150 160 162 168 175 180 189 192 200 210 216 224 225 240 243 250 252 256 270 280 288 300 307 315 320 324 336 350 360 375 378 384 400 405 420 432 448 450 480 486 500 504 512 525 540 560 567 576 600 614 625 630 640 648 672 675 700 720 729 750 756 768 800 810 840 864 875 896 900 921 945 960 972 1000 1008 1024 1050 1080 1120 1125 1134 1152 1200 1215 1228 1250 1260 1280 1296 1344 1350 1400 1440 1458 1500 1512 1535 1536 1575 1600 1620 1680 1701 1728 1750 1792 1800 1842 1875 1890 1920 1944 2000 2016 2025 2100 2149 2160 2187 2240 2250 2268 2304 2400 2430 2456 2500 2520 2560 2592 2625 2688 2700 2763 2800 2835 2880 2916 3000 3024 3070 3072 3150 3200 3240 3360 3375 3402 3456 3500 3584 3600 3645 3684 3750 3780 3840 3888 4000 4032 4050 4200 4298 4320 4374 4375 4480 4500 4536 4605 4608 4725 4800 4860 4912 5000 5040 5103 5120 5184 5250 5376 5400 5526 5600 5625 5670 5760 5832 6000 6048 6075 6140 6300 6400 6447 6480 6561 6720 6750 6804 6912 7000 7168 7200 7290 7368 7500 7560 7675 7680 7776 7875 8000 8064 8100 8289 8400 8505 8596 8640 8748 8750 8960 9000 9072 9210 9216 9450 9600 9720 9824 10000 10080 10125 10206 10368 10500 10745 10752 10800 10935 11052 11200 11250 11340 11520 11664 12000 12096 12150 12280 12600 12800 12894 12960 13122 13125 13440 13500 13608 13815 13824 14000 14175 14400 14580 14736 15000 15120 15309 15350 15360 15552 15750 16000 16128 16200 16578 16800 16875 17010 17192 17280 17496 17500 17920 18000 18144 18225 18420 18900 19200 19341 19440 19648 19683 20000 20160 20250 20412 20736 21000 21490 21504 21600 21870 22104 22400 22500 22680 23025 23040 23328 23625 24000 24192 24300 24560 24867 25200 25515 25600 25788 25920 26244 26250 26880 27000 27216 27630 27648 28000 28350 28800 29160 29472 30000 30240 30375 30618 30700 31104 31500 32000 32235 32256 32400 32805 33156 33600 33750 34020 34384 34560 34992 35000 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1268963010000 1289105280000 1353560544000 1450243440000 1503956160000 1624272652800 1691950680000 1804747392000 1933657920000 2030340816000 2255934240000 2320389504000 2537926020000 2707121088000 2900486880000 3007912320000 3248545305600 3383901360000 3867315840000 4060681632000 4511868480000 5075852040000 5414242176000 5800973760000 6767802720000 8121363264000 9023736960000 10151704080000 11601947520000 13535605440000 16242726528000 20303408160000 27071210880000 40606816320000 81213632640000
- Sum of all divisors σ(n): 348908005873504
- Sum of proper divisors (its aliquot sum) s(n): 267694373233504
- 81213632640000 is an abundant number, because the sum of its proper divisors (267694373233504) is greater than itself. Its abundance is 186480740593504
Bases of 81213632640000
- Binary: 100100111011101000001011011100101110100000000002
- Hexadecimal: 0x49DD05B97400
- Base-36: SSD100000
Squares and roots of 81213632640000
- 81213632640000 squared (812136326400002) is 6595654126584873369600000000
- 81213632640000 cubed (812136326400003) is 535657031256963963619613343744000000000000
-
The
square root of 81213632640000 is 9011860.6647018239 -
The
cube root of 81213632640000 is 43305.4921838119
Scales and comparisons
How big is 81213632640000?- 81,213,632,640,000 seconds is equal to 2,582,342 years, 16 weeks.
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To count from 1 to 81,213,632,640,000 would take you about six million, four hundred fifty-five thousand, eight hundred fifty-five 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 81213632640000 cubic inches would be around 3608.8 feet tall.
Recreational maths with 81213632640000
- 81213632640000 backwards is 00004623631218
- 81213632640000 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 81213632640000's digits is 36
- More coming soon!
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The information we have on file for 81213632640000 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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