81583826448296160

Names of 81583826448296160

• Cardinal: 81583826448296160 can be written as Eighty-one quadrillion, five hundred eighty-three trillion, eight hundred twenty-six billion, four hundred forty-eight million, two hundred ninety-six thousand, one hundred sixty.

Scientific notation

• Scientific notation: 8.158382644829616 × 10¹⁶

Factors of 81583826448296160

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 28341890470

Divisors of 81583826448296160

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 1999 3998 5997 7996 9995 11994 15992 17991 19990 23988 29985 31984 35982 39980 47976 59970 63968 71964 79960 89955 95952 119940 143928 159920 179910 191904 239880 287856 319840 359820 479760 575712 719640 959520 1439280 2878560 28341888461 56683776922 85025665383 113367553844 141709442305 170051330766 226735107688 255076996149 283418884610 340102661532 425128326915 453470215376 510153992298 566837769220 680205323064 850256653830 906940430752 1020307984596 1133675538440 1275384980745 1360410646128 1700513307660 2040615969192 2267351076880 2550769961490 2720821292256 3401026615320 4081231938384 4534702153760 5101539922980 6802053230640 8162463876768 10203079845960 13604106461280 20406159691920 40812319383840 56655435033539 113310870067078 169966305100617 226621740134156 283277175167695 339932610201234 453243480268312 509898915301851 566554350335390 679865220402468 849831525503085 906486960536624 1019797830603702 1133108700670780 1359730440804936 1699663051006170 1812973921073248 2039595661207404 2266217401341560 2549494576509255 2719460881609872 3399326102012340 4079191322414808 4532434802683120 5098989153018510 5438921763219744 6798652204024680 8158382644829616 9064869605366240 10197978306037020 13597304408049360 16316765289659232 20395956612074040 27194608816098720 40791913224148080 81583826448296160
• Sum of all divisors σ(n): 278544079804536000
• Sum of proper divisors (its aliquot sum) s(n): 196960253356239840
• 81583826448296160 is an abundant number, because the sum of its proper divisors (196960253356239840) is greater than itself. Its abundance is 115376426907943680

Bases of 81583826448296160

• Binary: 100100001110110000000111011010010110111100010100011100000₂
• Hexadecimal: 0x121D80ED2DE28E0
• Base-36: MBB1WGRC6W0

Squares and roots of 81583826448296160

• 81583826448296160 squared (81583826448296160²) is 6655920737945708028785767070745600
• 81583826448296160 cubed (81583826448296160³) is 543015482338177949352688209762067561135300816896000
• The square root of 81583826448296160 is 285628826.3608842405
• The cube root of 81583826448296160 is 433711.9185975135

Scales and comparisons

• 81,583,826,448,296,160 seconds is equal to 2,594,113,325 years, 36 weeks, 6 days, 23 hours, 36 minutes.
• To count from 1 to 81,583,826,448,296,160 would take you about seven billion, seven hundred eighty-two million, three hundred thirty-nine thousand, nine hundred seventy-seven 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 81583826448296160 cubic inches would be around 36142.7 feet tall.

Recreational maths with 81583826448296160

• 81583826448296160 backwards is 06169284462838518
• The number of decimal digits it has is: 17
• The sum of 81583826448296160's digits is 81
• More coming soon!