81027690210791424

Names of 81027690210791424

• Cardinal: 81027690210791424 can be written as Eighty-one quadrillion, twenty-seven trillion, six hundred ninety billion, two hundred ten million, seven hundred ninety-one thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 8.1027690210791424 × 10¹⁶

Factors of 81027690210791424

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 8377

Divisors of 81027690210791424

• Number of divisors d(n): 351
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 181 192 256 288 362 384 512 543 576 724 768 1024 1086 1152 1448 1536 1629 2048 2172 2304 2896 3072 3258 4096 4344 4608 5792 6144 6516 8191 8688 9216 11584 12288 13032 16382 17376 18432 23168 24573 26064 32761 32764 34752 36864 46336 49146 52128 65522 65528 69504 73719 92672 98283 98292 104256 131044 131056 139008 147438 185344 196566 196584 208512 262088 262112 278016 294849 294876 370688 393132 393168 417024 524176 524224 556032 589698 589752 741376 786264 786336 834048 1048352 1048448 1112064 1179396 1179504 1482571 1572528 1572672 1668096 2096704 2096896 2224128 2358792 2359008 2965142 3145056 3145344 3336192 4193408 4193792 4447713 4717584 4718016 5930284 6290112 6290688 6672384 8386816 8387584 8895426 9435168 9436032 11860568 12580224 12581376 13343139 16773632 16775168 17790852 18870336 18872064 23721136 25160448 25162752 26686278 33547264 33550336 35581704 37740672 37744128 47442272 50320896 50325504 53372556 67092481 67094528 71163408 75481344 75488256 94884544 100641792 100651008 106745112 134184962 134189056 142326816 150962688 150976512 189769088 201277443 201283584 213490224 268345351 268369924 284653632 301925376 301953024 379538176 402554886 402567168 426980448 536690702 536739848 569307264 603832329 603850752 759076352 805036053 805109772 853960896 1073381404 1073479696 1138614528 1207664658 1207701504 1518152704 1610072106 1610219544 1707921792 2146762808 2146959392 2277229056 2415108159 2415329316 3036305408 3220144212 3220439088 3415843584 4293525616 4293918784 4554458112 4830216318 4830658632 6072610816 6440288424 6440878176 6831687168 8587051232 8587837568 9108916224 9660432636 9661317264 12143739061 12880576848 12881756352 13663374336 17174102464 17175675136 18217832448 19320865272 19322634528 24287478122 25761153696 25763512704 27326748672 34348204928 34351350272 36431217183 38641730544 38645269056 48574956244 51522307392 51527025408 54653497344 68696409856 68702700544 72862434366 77283461088 77290538112 97149912488 103044614784 103054050816 109293651549 137392819712 137405401088 145724868732 154566922176 154581076224 194299824976 206089229568 206108101632 218587303098 274785639424 274810802176 291449737464 309133844352 309162152448 388599649952 412178459136 412216203264 437174606196 549571278848 582899474928 618267688704 618324304896 777199299904 824356918272 824432406528 874349212392 1099142557696 1165798949856 1236535377408 1236648609792 1554398599808 1648713836544 1748698424784 2198016770041 2331597899712 2473070754816 2473297219584 3108797199616 3297427673088 3497396849568 4396033540082 4663195799424 4946141509632 6217594399232 6594050310123 6994793699136 8792067080164 9326391598848 9892283019264 12435188798464 13188100620246 13989587398272 17584134160328 18652783197696 19782150930369 24870377596928 26376201240492 27979174796544 35168268320656 37305566395392 39564301860738 49740755193856 52752402480984 55958349593088 70336536641312 74611132790784 79128603721476 105504804961968 111916699186176 140673073282624 149222265581568 158257207442952 211009609923936 223833398372352 281346146565248 316514414885904 422019219847872 447666796744704 562692293130496 633028829771808 844038439695744 1125384586260992 1266057659543616 1688076879391488 2250769172521984 2532115319087232 3376153758782976 4501538345043968 5064230638174464 6752307517565952 9003076690087936 10128461276348928 13504615035131904 20256922552697856 27009230070263808 40513845105395712 81027690210791424
• Sum of all divisors σ(n): 235380402166052637
• Sum of proper divisors (its aliquot sum) s(n): 154352711955261213
• 81027690210791424 is an abundant number, because the sum of its proper divisors (154352711955261213) is greater than itself. Its abundance is 73325021744469789

Bases of 81027690210791424

• Binary: 100011111110111100100000101000011111111000001000000000000₂
• Hexadecimal: 0x11FDE4143FC1000
• Base-36: M5TX306JGG0

Squares and roots of 81027690210791424

• 81027690210791424 squared (81027690210791424²) is 6565486580895984361494144431947776
• 81027690210791424 cubed (81027690210791424³) is 531986212759948008727951211288171962389382796673024
• 81027690210791424 is a perfect square number. Its square root is 284653632
• The cube root of 81027690210791424 is 432724.1694190015

Scales and comparisons

• 81,027,690,210,791,424 seconds is equal to 2,576,429,913 years, 31 weeks, 1 day, 19 hours, 50 minutes, 24 seconds.
• To count from 1 to 81,027,690,210,791,424 would take you about seven billion, seven hundred twenty-nine million, two hundred eighty-nine thousand, seven hundred forty 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 81027690210791424 cubic inches would be around 36060.3 feet tall.

Recreational maths with 81027690210791424

• 81027690210791424 backwards is 42419701209672018
• The number of decimal digits it has is: 17
• The sum of 81027690210791424's digits is 63
• More coming soon!