18105812949472908100

Names of 18105812949472908100

• Cardinal: 18105812949472908100 can be written as Eighteen quintillion, one hundred five quadrillion, eight hundred twelve trillion, nine hundred forty-nine billion, four hundred seventy-two million, nine hundred eight thousand, one hundred.

Scientific notation

• Scientific notation: 1.81058129494729081 × 10¹⁹

Factors of 18105812949472908100

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 443852

Divisors of 18105812949472908100

• Number of divisors d(n): 243
• Complete list of divisors:
  1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 137 140 175 196 245 274 350 490 548 685 700 959 980 1225 1370 1918 2450 2740 3425 3836 4795 4900 6713 6850 9590 13426 13700 18769 19180 23975 26852 33565 37538 47950 67130 75076 93845 95900 131383 134260 167825 187690 262766 335650 375380 443701 469225 525532 656915 671300 887402 919681 938450 1313830 1774804 1839362 1876900 2218505 2627660 3105907 3284575 3678724 4437010 4598405 6211814 6569150 8874020 9196810 11092525 12423628 13138300 15529535 18393620 21741349 22185050 22992025 31059070 43482698 44370100 45984050 60787037 62118140 77647675 86965396 91968100 108706745 121574074 155295350 217413490 243148148 303935185 310590700 425509259 434826980 543533725 607870370 851018518 1087067450 1215740740 1519675925 1702037036 2127546295 2174134900 2978564813 3039351850 4255092590 5957129626 6078703700 8327824069 8510185180 10637731475 11914259252 14892824065 16655648138 21275462950 29785648130 33311296276 41639120345 42550925900 58294768483 59571296260 74464120325 83278240690 116589536966 148928240650 166556481380 196870577401 208195601725 233179073932 291473842415 297856481300 393741154802 408063379381 416391203450 582947684830 787482309604 816126758762 832782406900 984352887005 1165895369660 1378094041807 1457369212075 1632253517524 1968705774010 2040316896905 2756188083614 2914738424150 3937411548020 4080633793810 4921764435025 5512376167228 5829476848300 6890470209035 8161267587620 9646658292649 9843528870050 10201584484525 13780940418070 19293316585298 19687057740100 20403168969050 26971269103937 27561880836140 34452351045175 38586633170596 40806337938100 48233291463245 53942538207874 68904702090350 96466582926490 107885076415748 134856345519685 137809404180700 188798883727559 192933165852980 241166457316225 269712691039370 377597767455118 482332914632450 539425382078740 674281727598425 755195534910236 943994418637795 964665829264900 1321592186092913 1348563455196850 1887988837275590 2643184372185826 2697126910393700 3695063867239369 3775977674551180 4719972093188975 5286368744371652 6607960930464565 7390127734478738 9439944186377950 13215921860929130 14780255468957476 18475319336196845 18879888372755900 25865447070675583 26431843721858260 33039804652322825 36950638672393690 51730894141351166 66079609304645650 73901277344787380 92376596680984225 103461788282702332 129327235353377915 132159218609291300 181058129494729081 184753193361968450 258654470706755830 362116258989458162 369506386723936900 517308941413511660 646636176766889575 724232517978916324 905290647473645405 1293272353533779150 1810581294947290810 2586544707067558300 3621162589894581620 4526453237368227025 9052906474736454050 18105812949472908100
• Sum of all divisors σ(n): 46040391458054993349
• Sum of proper divisors (its aliquot sum) s(n): 27934578508582085249
• 18105812949472908100 is an abundant number, because the sum of its proper divisors (27934578508582085249) is greater than itself. Its abundance is 9828765559109177149

Bases of 18105812949472908100

• Binary: 1111101101000100110001001111001011100111000000000001001101000100₂
• Hexadecimal: 0xFB44C4F2E7001344
• Base-36: 3TK5315VR2CLG

Squares and roots of 18105812949472908100

• 18105812949472908100 squared (18105812949472908100²) is 327820462561300847802557615871045610000
• 18105812949472908100 cubed (18105812949472908100³) is 5935455976144599548519211794219242216969709914438441000000
• 18105812949472908100 is a perfect square number. Its square root is 4255092590
• The cube root of 18105812949472908100 is 2625866.7045589535

Scales and comparisons

• 18,105,812,949,472,908,100 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,105,812,949,472,908,100 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 18105812949472908100 cubic inches would be around 218822.2 feet tall.

Recreational maths with 18105812949472908100

• 18105812949472908100 backwards is 00180927494921850181
• The number of decimal digits it has is: 20
• The sum of 18105812949472908100's digits is 79
• More coming soon!