81324432000

Names of 81324432000

• Cardinal: 81324432000 can be written as Eighty-one billion, three hundred twenty-four million, four hundred thirty-two thousand.

Scientific notation

• Scientific notation: 8.1324432 × 10¹⁰

Factors of 81324432000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 26910

Divisors of 81324432000

• Number of divisors d(n): 512
• 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 84 90 96 100 105 108 112 120 125 126 128 135 140 144 150 160 168 175 180 189 192 200 210 216 224 225 240 250 252 270 280 288 300 315 320 336 350 360 375 378 384 400 420 432 448 450 480 500 504 525 540 560 576 600 630 640 672 675 700 720 750 756 800 840 864 875 896 900 945 960 1000 1008 1050 1080 1120 1125 1152 1200 1260 1344 1350 1400 1440 1500 1512 1575 1600 1680 1728 1750 1800 1890 1920 2000 2016 2100 2160 2240 2250 2400 2520 2625 2688 2700 2800 2880 3000 3024 3150 3200 3360 3375 3456 3500 3600 3780 4000 4032 4200 4320 4480 4500 4725 4800 5040 5250 5400 5600 5760 6000 6048 6300 6720 6750 7000 7200 7560 7875 8000 8064 8400 8640 9000 9450 9600 10080 10500 10800 11200 12000 12096 12600 13440 13500 14000 14400 15120 15750 16000 16800 17280 18000 18900 20160 21000 21600 22400 23625 24000 24192 25200 26893 27000 28000 28800 30240 31500 33600 36000 37800 40320 42000 43200 47250 48000 50400 53786 54000 56000 60480 63000 67200 72000 75600 80679 84000 86400 94500 100800 107572 108000 112000 120960 126000 134465 144000 151200 161358 168000 188251 189000 201600 215144 216000 242037 252000 268930 302400 322716 336000 376502 378000 403395 430288 432000 484074 504000 537860 564753 604800 645432 672325 726111 753004 756000 806790 860576 941255 968148 1008000 1075720 1129506 1210185 1290864 1344650 1452222 1506008 1512000 1613580 1694259 1721152 1882510 1936296 2016975 2151440 2259012 2420370 2581728 2689300 2823765 2904444 3012016 3024000 3227160 3361625 3388518 3442304 3630555 3765020 3872592 4033950 4302880 4518024 4706275 4840740 5082777 5163456 5378600 5647530 5808888 6024032 6050925 6454320 6723250 6777036 7261110 7530040 7745184 8067900 8471295 8605760 9036048 9412550 9681480 10084875 10165554 10326912 10757200 11295060 11617776 12048064 12101850 12908640 13446500 13554072 14118825 14522220 15060080 15490368 16135800 16942590 17211520 18072096 18152775 18825100 19362960 20169750 20331108 21514400 22590120 23235552 23531375 24096128 24203700 25413885 25817280 26893000 27108144 28237650 29044440 30120160 30254625 30980736 32271600 33885180 36144192 36305550 37650200 38725920 40339500 40662216 42356475 43028800 45180240 46471104 47062750 48407400 50827770 51634560 53786000 54216288 56475300 58088880 60240320 60509250 64543200 67770360 70594125 72288384 72611100 75300400 77451840 80679000 81324432 84712950 86057600 90360480 90763875 92942208 94125500 96814800 101655540 107572000 108432576 112950600 116177760 120480640 121018500 127069425 129086400 135540720 141188250 145222200 150600800 154903680 161358000 162648864 169425900 180720960 181527750 188251000 193629600 203311080 211782375 215144000 216865152 225901200 232355520 242037000 254138850 258172800 271081440 282376500 290444400 301201600 322716000 325297728 338851800 361441920 363055500 376502000 387259200 406622160 423564750 430288000 451802400 464711040 484074000 508277700 542162880 564753000 580888800 602403200 635347125 645432000 650595456 677703600 726111000 753004000 774518400 813244320 847129500 903604800 968148000 1016555400 1084325760 1129506000 1161777600 1270694250 1290864000 1355407200 1452222000 1506008000 1626488640 1694259000 1807209600 1936296000 2033110800 2259012000 2323555200 2541388500 2710814400 2904444000 3012016000 3252977280 3388518000 3872592000 4066221600 4518024000 5082777000 5421628800 5808888000 6777036000 8132443200 9036048000 10165554000 11617776000 13554072000 16264886400 20331108000 27108144000 40662216000 81324432000
• Sum of all divisors σ(n): 342349862400
• Sum of proper divisors (its aliquot sum) s(n): 261025430400
• 81324432000 is an abundant number, because the sum of its proper divisors (261025430400) is greater than itself. Its abundance is 179700998400

Bases of 81324432000

• Binary: 1001011101111010100000101101010000000₂
• Hexadecimal: 0x12EF505A80
• Base-36: 11CYGTC0

Squares and roots of 81324432000

• 81324432000 squared (81324432000²) is 6613663240122624000000
• 81324432000 cubed (81324432000³) is 537852406442252007149568000000000
• The square root of 81324432000 is 285174.3887518653
• The cube root of 81324432000 is 4332.5177057939

Scales and comparisons

• 81,324,432,000 seconds is equal to 2,585 years, 45 weeks.
• To count from 1 to 81,324,432,000 would take you about five thousand, one hundred seventy-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 81324432000 cubic inches would be around 361 feet tall.

Recreational maths with 81324432000

• 81324432000 backwards is 00023442318
• 81324432000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81324432000's digits is 27
• More coming soon!