81127846621440

Names of 81127846621440

• Cardinal: 81127846621440 can be written as Eighty-one trillion, one hundred twenty-seven billion, eight hundred forty-six million, six hundred twenty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 8.112784662144 × 10¹³

Factors of 81127846621440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 239453

Divisors of 81127846621440

• Number of divisors d(n): 432
• 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 64 72 79 80 90 96 120 128 144 158 160 180 192 237 240 256 288 316 320 360 373 384 395 474 480 576 632 640 711 720 746 768 790 948 960 1119 1152 1185 1264 1280 1422 1440 1492 1580 1865 1896 1920 2238 2304 2370 2528 2844 2880 2984 3160 3357 3555 3730 3792 3840 4476 4740 5056 5595 5688 5760 5968 6320 6714 7110 7460 7584 8952 9480 10112 11190 11376 11520 11936 12640 13428 14220 14920 15168 16785 17904 18960 20224 22380 22752 23872 25280 26856 28440 29467 29840 30336 33570 35808 37920 44760 45504 47744 50560 53712 56880 58934 59680 60672 67140 71616 75840 88401 89520 91008 95488 101120 107424 113760 117868 119360 134280 143232 147335 151680 176802 179040 182016 214848 227520 235736 238720 238991 265203 268560 286464 294670 303360 353604 358080 429696 442005 455040 471472 477440 477982 530406 537120 589340 707208 716160 716973 859392 884010 910080 942944 955964 1060812 1074240 1178680 1194955 1326015 1414416 1432320 1433946 1768020 1885888 1911928 2121624 2148480 2150919 2357360 2389910 2652030 2828832 2867892 3536040 3584865 3771776 3823856 4243248 4296960 4301838 4714720 4779820 5304060 5657664 5735784 7072080 7169730 7543552 7647712 8486496 8603676 9429440 9559640 10608120 10754595 11315328 11471568 14144160 14339460 15295424 16972992 17207352 18858880 18880289 19119280 21216240 21509190 22630656 22943136 28288320 28678920 30590848 33945984 34414704 37717760 37760578 38238560 42432480 43018380 45886272 56576640 56640867 57357840 61181696 67891968 68829408 75521156 76477120 84864960 86036760 89143643 91772544 94401445 113153280 113281734 114715680 137658816 151042312 152954240 169729920 169922601 172073520 178287286 183545088 188802890 226563468 229431360 267430929 275317632 283204335 302084624 305908480 339459840 339845202 344147040 356574572 377605780 445718215 453126936 458862720 534861858 550635264 566408670 604169248 679690404 688294080 713149144 755211560 802292787 849613005 891436430 906253872 917725440 1069723716 1132817340 1208338496 1337154645 1359380808 1376588160 1426298288 1510423120 1604585574 1699226010 1782872860 1812507744 2139447432 2265634680 2416676992 2674309290 2718761616 2753176320 2852596576 3020846240 3209171148 3398452020 3565745720 3625015488 4011463935 4278894864 4531269360 4833353984 5348618580 5437523232 5705193152 6041692480 6418342296 6796904040 7042347797 7131491440 7250030976 8022927870 8557789728 9062538720 10697237160 10875046464 11410386304 12083384960 12836684592 13593808080 14084695594 14262982880 14500061952 16045855740 17115579456 18125077440 21127043391 21394474320 21750092928 22820772608 24166769920 25673369184 27187616160 28169391188 28525965760 32091711480 34231158912 35211738985 36250154880 42254086782 42788948640 43500185856 51346738368 54375232320 56338782376 57051931520 63381130173 64183422960 68462317824 70423477970 72500309760 84508173564 85577897280 102693476736 105635216955 108750464640 112677564752 114103863040 126762260346 128366845920 140846955940 169016347128 171155794560 205386953472 211270433910 217500929280 225355129504 253524520692 256733691840 281693911880 316905650865 338032694256 342311589120 422540867820 450710259008 507049041384 513467383680 563387823760 633811301730 676065388512 845081735640 901420518016 1014098082768 1026934767360 1126775647520 1267622603460 1352130777024 1690163471280 1802841036032 2028196165536 2253551295040 2535245206920 2704261554048 3380326942560 4056392331072 4507102590080 5070490413840 5408523108096 6760653885120 8112784662144 9014205180160 10140980827680 13521307770240 16225569324288 20281961655360 27042615540480 40563923310720 81127846621440
• Sum of all divisors σ(n): 285010234629120
• Sum of proper divisors (its aliquot sum) s(n): 203882388007680
• 81127846621440 is an abundant number, because the sum of its proper divisors (203882388007680) is greater than itself. Its abundance is 122754541386240

Bases of 81127846621440

• Binary: 10010011100100100001100011110101011000100000000₂
• Hexadecimal: 0x49C90C7AB100
• Base-36: SR9M97WG0

Squares and roots of 81127846621440

• 81127846621440 squared (81127846621440²) is 6581727497431893622667673600
• 81127846621440 cubed (81127846621440³) is 533961378915768797312241105869664681984000
• The square root of 81127846621440 is 9007099.7896903529
• The cube root of 81127846621440 is 43290.2389377001

Scales and comparisons

• 81,127,846,621,440 seconds is equal to 2,579,614 years, 30 weeks, 6 hours, 24 minutes.
• To count from 1 to 81,127,846,621,440 would take you about six million, four hundred forty-nine thousand and thirty-six 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 81127846621440 cubic inches would be around 3607.5 feet tall.

Recreational maths with 81127846621440

• 81127846621440 backwards is 04412664872118
• The number of decimal digits it has is: 14
• The sum of 81127846621440's digits is 54
• More coming soon!