18081563647639240448

Names of 18081563647639240448

• Cardinal: 18081563647639240448 can be written as Eighteen quintillion, eighty-one quadrillion, five hundred sixty-three trillion, six hundred forty-seven billion, six hundred thirty-nine million, two hundred forty thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 1.8081563647639240448 × 10¹⁹

Factors of 18081563647639240448

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 1059

Divisors of 18081563647639240448

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 281 448 562 769 896 1124 1538 1792 1967 2248 3076 3934 4496 5383 6152 7868 8992 10766 12304 15736 17984 21532 24608 31472 35968 43064 49216 62944 71936 78961 86128 98432 125888 157922 172256 196864 216089 251776 315844 344512 432178 503552 552727 591361 631688 689024 864356 1105454 1182722 1263376 1378048 1512623 1728712 2210908 2365444 2526752 3025246 3457424 4139527 4421816 4730888 5053504 6050492 6914848 8279054 8843632 9461776 10107008 12100984 13829696 16558108 17687264 18923552 20214016 22188041 24201968 27659392 33116216 35374528 37847104 44376082 48403936 55318784 60721009 66232432 70749056 75694208 88752164 96807872 121442018 132464864 141498112 151388416 155316287 166172441 177504328 193615744 242884036 264929728 310632574 332344882 355008656 387231488 425047063 454756609 485768072 529859456 621265148 664689764 710017312 850094126 909513218 971536144 1059718912 1163207087 1242530296 1329379528 1420034624 1700188252 1819026436 1943072288 2326414174 2485060592 2658759056 2840069248 3183296263 3400376504 3638052872 3886144576 4652828348 4970121184 5317518112 5680138496 6366592526 6800753008 7276105744 7772289152 9305656696 9940242368 10635036224 12733185052 13601506016 14552211488 15544578304 17062603529 18611313392 19880484736 21270072448 25466370104 27203012032 29104422976 34125207058 37222626784 39760969472 42540144896 46694455921 50932740208 54406024064 58208845952 68250414116 74445253568 93388911842 101865480416 108812048128 116417691904 119438224703 127786607129 136500828232 148890507136 186777823684 203730960832 238876449406 255573214258 273001656464 297781014272 326861191447 373555647368 407461921664 477752898812 511146428516 546003312928 653722382894 747111294736 814923843328 894506249903 955505797624 1022292857032 1092006625856 1307444765788 1494222589472 1789012499806 1911011595248 2044585714064 2184013251712 2614889531576 2988445178944 3578024999612 3822023190496 4089171428128 4368026503424 5229779063152 5976890357888 7156049999224 7644046380992 8178342856256 10459558126304 11953780715776 13121142113801 14312099998448 15288092761984 16356685712512 20919116252608 26242284227602 28624199996896 30576185523968 32713371425024 35908036603249 41838232505216 52484568455204 57248399993792 71816073206498 83676465010432 91847994796607 104969136910408 114496799987584 143632146412996 183695989593214 209938273820816 228993599975168 251356256222743 287264292825992 367391979186428 419876547641632 502712512445486 574528585651984 734783958372856 839753095283264 1005425024890972 1149057171303968 1469567916745712 1679506190566528 2010850049781944 2298114342607936 2939135833491424 3359012381133056 4021700099563888 4596228685215872 5878271666982848 8043400199127776 9192457370431744 10090158285512969 11756543333965696 16086800398255552 20180316571025938 23513086667931392 32173600796511104 40360633142051876 64347201593022208 70631107998590783 80721266284103752 141262215997181566 161442532568207504 282524431994363132 322885065136415008 565048863988726264 645770130272830016 1130097727977452528 1291540260545660032 2260195455954905056 2583080521091320064 4520390911909810112 9040781823819620224 18081563647639240448
• Sum of all divisors σ(n): 41449784265199390080
• Sum of proper divisors (its aliquot sum) s(n): 23368220617560149632
• 18081563647639240448 is an abundant number, because the sum of its proper divisors (23368220617560149632) is greater than itself. Its abundance is 5286656969920909184

Bases of 18081563647639240448

• Binary: 1111101011101110100111100101011001011001001001110011111100000000₂
• Hexadecimal: 0xFAEE9E5659273F00
• Base-36: 3TDIBDEEPPVY8

Squares and roots of 18081563647639240448

• 18081563647639240448 squared (18081563647639240448²) is 326942943943628874301906216062359240704
• 18081563647639240448 cubed (18081563647639240448³) is 5911639650063273824793844147510968548577656404452564795392
• The square root of 18081563647639240448 is 4252242190.6141753119
• The cube root of 18081563647639240448 is 2624693.8973745601

Scales and comparisons

• 18,081,563,647,639,240,448 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,081,563,647,639,240,448 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 18081563647639240448 cubic inches would be around 218724.5 feet tall.

Recreational maths with 18081563647639240448

• 18081563647639240448 backwards is 84404293674636518081
• The number of decimal digits it has is: 20
• The sum of 18081563647639240448's digits is 89
• More coming soon!