81639664128000
81,639,664,128,000 is an even composite number composed of six prime numbers multiplied together.
What does the number 81639664128000 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 4992 divisors.
81639664128000 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four thousand, nine hundred ninety-two divisors.
Prime factorization of 81639664128000:
212 × 35 × 53 × 113 × 17 × 29
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 5 × 11 × 11 × 11 × 17 × 29)See below for interesting mathematical facts about the number 81639664128000 from the Numbermatics database.
Names of 81639664128000
- Cardinal: 81639664128000 can be written as Eighty-one trillion, six hundred thirty-nine billion, six hundred sixty-four million, one hundred twenty-eight thousand.
Scientific notation
- Scientific notation: 8.1639664128 × 1013
Factors of 81639664128000
Divisors of 81639664128000
- Number of divisors d(n): 4992
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 11 12 15 16 17 18 20 22 24 25 27 29 30 32 33 34 36 40 44 45 48 50 51 54 55 58 60 64 66 68 72 75 80 81 85 87 88 90 96 99 100 102 108 110 116 120 121 125 128 132 135 136 144 145 150 153 160 162 165 170 174 176 180 187 192 198 200 204 216 220 225 232 240 242 243 250 255 256 261 264 270 272 275 288 290 297 300 306 319 320 324 330 340 348 352 360 363 374 375 384 396 400 405 408 425 432 435 440 450 459 464 480 484 486 493 495 500 510 512 522 528 540 544 550 561 576 580 594 600 605 612 638 640 648 660 675 680 696 704 720 725 726 748 750 765 768 783 792 800 810 816 825 850 864 870 880 891 900 918 928 935 957 960 968 972 986 990 1000 1020 1024 1044 1056 1080 1088 1089 1100 1122 1125 1152 1160 1188 1200 1210 1215 1224 1275 1276 1280 1296 1305 1320 1331 1350 1360 1375 1377 1392 1408 1440 1450 1452 1479 1485 1496 1500 1530 1536 1566 1584 1595 1600 1620 1632 1650 1683 1700 1728 1740 1760 1782 1800 1815 1836 1856 1870 1914 1920 1936 1944 1972 1980 2000 2025 2040 2048 2057 2088 2112 2125 2160 2175 2176 2178 2200 2244 2250 2295 2304 2320 2349 2376 2400 2420 2430 2448 2465 2475 2550 2552 2560 2592 2610 2640 2662 2673 2700 2720 2750 2754 2784 2805 2816 2871 2880 2900 2904 2958 2970 2992 3000 3025 3060 3072 3132 3168 3190 3200 3240 3264 3267 3300 3366 3375 3400 3456 3480 3509 3520 3564 3600 3625 3630 3672 3712 3740 3825 3828 3840 3872 3888 3915 3944 3960 3993 4000 4050 4080 4096 4114 4125 4131 4176 4224 4250 4320 4350 4352 4356 4400 4437 4455 4488 4500 4590 4608 4640 4675 4698 4752 4785 4800 4840 4860 4896 4930 4950 5049 5100 5104 5120 5184 5220 5280 5324 5346 5400 5423 5440 5445 5500 5508 5568 5610 5632 5742 5760 5800 5808 5916 5940 5984 6000 6050 6075 6120 6144 6171 6264 6336 6375 6380 6400 6480 6525 6528 6534 6600 6655 6732 6750 6800 6885 6912 6960 7018 7040 7047 7128 7200 7250 7260 7344 7395 7424 7425 7480 7650 7656 7680 7744 7776 7830 7888 7920 7975 7986 8000 8100 8160 8228 8250 8262 8352 8415 8448 8500 8613 8640 8700 8704 8712 8800 8874 8910 8976 9000 9075 9180 9216 9280 9350 9396 9504 9570 9600 9680 9720 9792 9801 9860 9900 10098 10125 10200 10208 10240 10285 10368 10440 10527 10560 10648 10692 10800 10846 10875 10880 10890 11000 11016 11136 11220 11264 11475 11484 11520 11600 11616 11745 11832 11880 11968 11979 12000 12100 12150 12240 12288 12325 12342 12375 12528 12672 12750 12760 12800 12960 13050 13056 13068 13200 13310 13311 13365 13464 13500 13600 13770 13824 13920 14025 14036 14080 14094 14256 14355 14400 14500 14520 14688 14790 14848 14850 14960 15125 15147 15300 15312 15360 15488 15552 15660 15776 15840 15950 15972 16000 16200 16269 16320 16335 16456 16500 16524 16704 16830 16896 17000 17226 17280 17400 17408 17424 17545 17600 17748 17820 17952 18000 18150 18360 18432 18513 18560 18700 18792 19008 19125 19140 19200 19360 19440 19575 19584 19602 19720 19800 19965 20196 20250 20400 20416 20480 20570 20655 20736 20880 21054 21120 21296 21384 21600 21692 21750 21760 21780 22000 22032 22185 22272 22275 22440 22528 22627 22950 22968 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87315148800 87973776000 88932096000 90710737920 91627008000 92772345600 93838694400 94490352000 96046663680 98957168640 100048608000 100789708800 102049580160 103080384000 104265216000 106301646000 106718515200 108852885504 109143936000 112451328000 112606433280 113388422400 115965432000 117298368000 120058329600 120947650560 123696460800 125987136000 127561975200 127961856000 133398144000 134941593600 136066106880 137440512000 140758041600 141735528000 145525248000 148435752960 150072912000 151184563200 154620576000 156397824000 159452469000 160077772800 163279328256 164928614400 165597696000 167982848000 168676992000 170082633600 175947552000 177864192000 181421475840 185544691200 187677388800 188980704000 192093327360 200097216000 201579417600 204099160320 206160768000 212603292000 217705771008 218287872000 224902656000 226776844800 231930864000 234596736000 240116659200 247392921600 251974272000 255123950400 255923712000 266796288000 272132213760 274881024000 281516083200 283471056000 296871505920 300145824000 302369126400 309241152000 312795648000 318904938000 320155545600 326558656512 335965696000 337353984000 340165267200 351895104000 362842951680 371089382400 377961408000 400194432000 408198320640 412321536000 425206584000 436575744000 453553689600 463861728000 469193472000 480233318400 494785843200 503948544000 510247900800 533592576000 544264427520 563032166400 566942112000 600291648000 604738252800 618482304000 637809876000 653117313024 674707968000 680330534400 703790208000 742178764800 755922816000 800388864000 816396641280 824643072000 850413168000 907107379200 927723456000 938386944000 960466636800 1007897088000 1020495801600 1088528855040 1133884224000 1200583296000 1236964608000 1275619752000 1360661068800 1407580416000 1484357529600 1511845632000 1600777728000 1632793282560 1700826336000 1814214758400 1855446912000 2040991603200 2267768448000 2401166592000 2473929216000 2551239504000 2721322137600 2815160832000 3023691264000 3265586565120 3401652672000 3710893824000 4081983206400 4535536896000 4802333184000 5102479008000 5442644275200 6803305344000 7421787648000 8163966412800 9071073792000 10204958016000 13606610688000 16327932825600 20409916032000 27213221376000 40819832064000 81639664128000
- Sum of all divisors σ(n): 367703483696640
- Sum of proper divisors (its aliquot sum) s(n): 286063819568640
- 81639664128000 is an abundant number, because the sum of its proper divisors (286063819568640) is greater than itself. Its abundance is 204424155440640
Bases of 81639664128000
- Binary: 100101001000000001101110010111000010000000000002
- Hexadecimal: 0x4A40372E1000
- Base-36: SXSQS5C00
Squares and roots of 81639664128000
- 81639664128000 squared (816396641280002) is 6665034758932650000384000000
- 81639664128000 cubed (816396641280003) is 544131199120706993804328831025152000000000
-
The
square root of 81639664128000 is 9035467.0121693211 -
The
cube root of 81639664128000 is 43381.0843206175
Scales and comparisons
How big is 81639664128000?- 81,639,664,128,000 seconds is equal to 2,595,888 years, 41 weeks, 1 day.
-
To count from 1 to 81,639,664,128,000 would take you about six million, four hundred eighty-nine thousand, seven hundred twenty-one 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 81639664128000 cubic inches would be around 3615.1 feet tall.
Recreational maths with 81639664128000
- 81639664128000 backwards is 00082146693618
- 81639664128000 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 81639664128000's digits is 54
- More coming soon!
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The information we have on file for 81639664128000 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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