81036378842432

Names of 81036378842432

• Cardinal: 81036378842432 can be written as Eighty-one trillion, thirty-six billion, three hundred seventy-eight million, eight hundred forty-two thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 8.1036378842432 × 10¹³

Factors of 81036378842432

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 165

Divisors of 81036378842432

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 8 13 16 26 32 43 52 64 86 104 107 172 208 214 344 416 428 559 688 832 856 1118 1376 1391 1712 1849 2236 2752 2782 3424 3698 4472 4601 5564 6848 7396 8944 9202 11128 11449 14792 17888 18404 22256 22898 24037 29584 35776 36808 44512 45796 48074 59168 59813 73616 79507 89024 91592 96148 118336 119626 147232 148837 159014 183184 192296 197843 239252 294464 297674 318028 366368 384592 395686 478504 492307 595348 636056 732736 769184 791372 957008 984614 1033591 1190696 1225043 1272112 1538368 1582744 1914016 1969228 2067182 2381392 2450086 2544224 2571959 3165488 3828032 3938456 4134364 4762784 4900172 5088448 5143918 6330976 6399991 7876912 8268728 8507249 9525568 9800344 10287836 12661952 12799982 15753824 15925559 16537456 17014498 19600688 20575672 21169201 25599964 31507648 31851118 33074912 34028996 39201376 41151344 42338402 51199928 52676849 63702236 66149824 68057992 78402752 82302688 84676804 102399856 105353698 110594237 127404472 136115984 164605376 169353608 204799712 210707396 221188474 254808944 272231968 275199613 338707216 409599424 421414792 442376948 509617888 544463936 550399226 677414432 684799037 842829584 884753896 910275643 1019235776 1100798452 1354828864 1369598074 1685659168 1769507792 1820551286 2201596904 2265104507 2739196148 3371318336 3539015584 3641102572 4403193808 4530209014 5478392296 7078031168 7282205144 8806387616 9060418028 10956784592 11833583359 14564410288 17612775232 18120836056 21913569184 23667166718 29128820576 29446358591 36241672112 43827138368 47334333436 58257641152 58892717182 72483344224 94668666872 97399493801 117785434364 144966688448 189337333744 194798987602 235570868728 378674667488 389597975204 471141737456 757349334976 779195950408 942283474912 1266193419413 1558391900816 1884566949824 2532386838826 3116783801632 5064773677652 6233567603264 10129547355304 20259094710608 40518189421216 81036378842432
• Sum of all divisors σ(n): 178972128720000
• Sum of proper divisors (its aliquot sum) s(n): 97935749877568
• 81036378842432 is an abundant number, because the sum of its proper divisors (97935749877568) is greater than itself. Its abundance is 16899371035136

Bases of 81036378842432

• Binary: 10010011011001111000000100100110010010101000000₂
• Hexadecimal: 0x49B3C0932540
• Base-36: SQ3LJNYGW

Squares and roots of 81036378842432

• 81036378842432 squared (81036378842432²) is 6566894695894160692283674624
• 81036378842432 cubed (81036378842432³) is 532157366394836486304151120381392452845568
• The square root of 81036378842432 is 9002020.8199288231
• The cube root of 81036378842432 is 43273.9635928129

Scales and comparisons

• 81,036,378,842,432 seconds is equal to 2,576,706 years, 9 weeks, 4 days, 10 hours, 32 seconds.
• To count from 1 to 81,036,378,842,432 would take you about six million, four hundred forty-one thousand, seven hundred sixty-five 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 81036378842432 cubic inches would be around 3606.2 feet tall.

Recreational maths with 81036378842432

• 81036378842432 backwards is 23424887363018
• The number of decimal digits it has is: 14
• The sum of 81036378842432's digits is 59
• More coming soon!