81272156688049152

Names of 81272156688049152

• Cardinal: 81272156688049152 can be written as Eighty-one quadrillion, two hundred seventy-two trillion, one hundred fifty-six billion, six hundred eighty-eight million, forty-nine thousand, one hundred fifty-two.

Scientific notation

• Scientific notation: 8.1272156688049152 × 10¹⁶

Factors of 81272156688049152

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 950

Divisors of 81272156688049152

• Number of divisors d(n): 704
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 256 294 307 336 343 384 392 448 512 588 614 631 672 686 768 784 896 921 1024 1029 1176 1228 1262 1344 1372 1536 1568 1792 1842 1893 2058 2149 2352 2456 2524 2688 2744 3072 3136 3584 3684 3786 4116 4298 4417 4704 4912 5048 5376 5488 6272 6447 7168 7368 7572 8232 8596 8834 9408 9824 10096 10752 10976 12544 12894 13251 14736 15043 15144 16464 17192 17668 18816 19648 20192 21504 21952 25088 25788 26502 29472 30086 30288 30919 32928 34384 35336 37632 39296 40384 43904 45129 50176 51576 53004 58944 60172 60576 61838 65856 68768 70672 75264 78592 80768 87808 90258 92757 103152 105301 106008 117888 120344 121152 123676 131712 137536 141344 150528 157184 161536 175616 180516 185514 193717 206304 210602 212016 216433 235776 240688 242304 247352 263424 275072 282688 314368 315903 323072 351232 361032 371028 387434 398161 412608 421204 424032 432866 471552 481376 484608 494704 526848 550144 565376 581151 631806 646144 649299 722064 742056 774868 796322 825216 842408 848064 865732 943104 962752 969216 989408 1053696 1100288 1130752 1162302 1194483 1263612 1298598 1356019 1444128 1484112 1549736 1592644 1650432 1684816 1696128 1731464 1925504 1938432 1978816 2200576 2261504 2324604 2388966 2527224 2597196 2712038 2787127 2888256 2968224 3099472 3185288 3300864 3369632 3392256 3462928 3851008 3957632 4068057 4523008 4649208 4777932 5054448 5194392 5424076 5574254 5776512 5936448 6198944 6370576 6601728 6739264 6784512 6925856 7702016 7915264 8136114 8361381 9298416 9492133 9555864 10108896 10388784 10848152 11148508 11553024 11872896 12397888 12741152 13478528 13569024 13851712 15404032 15830528 16272228 16722762 18596832 18984266 19111728 19509889 20217792 20777568 21696304 22297016 23106048 23745792 24795776 25482304 26957056 27703424 28476399 31661056 32544456 33445524 37193664 37968532 38223456 39019778 40435584 41555136 43392608 44594032 46212096 47491584 49591552 50964608 53914112 55406848 56952798 58529667 65088912 66444931 66891048 74387328 75937064 76446912 78039556 80871168 83110272 86785216 89188064 94983168 99183104 101929216 107828224 110813696 113905596 117059334 122235427 130177824 132889862 133782096 136569223 148774656 151874128 152893824 156079112 161742336 166220544 173570432 178376128 198366208 199334793 203858432 221627392 227811192 234118668 244470854 251239591 260355648 265779724 267564192 273138446 297549312 303748256 305787648 312158224 323484672 332441088 347140864 356752256 366706281 398669586 407716864 409707669 455622384 468237336 488941708 502479182 520711296 531559448 535128384 546276892 595098624 607496512 611575296 624316448 664882176 694281728 713504512 733412562 753718773 797339172 819415338 855647989 911244768 936474672 977883416 1004958364 1041422592 1063118896 1070256768 1092553784 1214993024 1223150592 1248632896 1388563456 1427009024 1466825124 1507437546 1594678344 1638830676 1711295978 1758677137 1822489536 1872949344 1955766832 2009916728 2082845184 2126237792 2140513536 2185107568 2429986048 2497265792 2566943967 2854018048 2933650248 3014875092 3189356688 3277661352 3422591956 3517354274 3644979072 3745898688 3911533664 4019833456 4165690368 4252475584 4281027072 4370215136 4859972096 4994531584 5133887934 5276031411 5867300496 5989535923 6029750184 6378713376 6555322704 6845183912 7034708548 7289958144 7491797376 7823067328 8039666912 8504951168 8562054144 8740430272 9719944192 9989063168 10267775868 10552062822 11734600992 11979071846 12059500368 12310739959 12757426752 13110645408 13690367824 14069417096 14579916288 14983594752 15646134656 16079333824 17009902336 17480860544 17968607769 19978126336 20535551736 21104125644 23469201984 23958143692 24119000736 24621479918 25514853504 26221290816 27380735648 28138834192 29159832576 29967189504 31292269312 32158667648 34019804672 34961721088 35937215538 36932219877 41071103472 41926751461 42208251288 46938403968 47916287384 48238001472 49242959836 51029707008 52442581632 54761471296 56277668384 59934379008 62584538624 64317335296 68039609344 69923442176 71874431076 73864439754 77130554437 82142206944 83853502922 84416502576 86175179713 93876807936 95832574768 96476002944 98485919672 102059414016 104885163264 109522942592 112555336768 125169077248 125780254383 128634670592 139846884352 143748862152 147728879508 154261108874 164284413888 167707005844 168833005152 172350359426 187753615872 191665149536 192952005888 196971839344 204118828032 209770326528 219045885184 225110673536 231391663311 251560508766 257269341184 258525539139 287497724304 295457759016 308522217748 328568827776 335414011688 337666010304 344700718852 375507231744 383330299072 385904011776 393943678688 419540653056 438091770368 450221347072 462783326622 503121017532 517051078278 539913881059 574995448608 590915518032 617044435496 657137655552 670828023376 675332020608 689401437704 766660598144 771808023552 787887357376 876183540736 900442694144 925566653244 1006242035064 1034102156556 1079827762118 1149990897216 1181831036064 1234088870992 1314275311104 1341656046752 1350664041216 1378802875408 1533321196288 1575774714752 1619741643177 1800885388288 1851133306488 2012484070128 2068204313112 2159655524236 2299981794432 2363662072128 2468177741984 2628550622208 2683312093504 2701328082432 2757605750816 3066642392576 3151549429504 3239483286354 3702266612976 3779397167413 4024968140256 4136408626224 4319311048472 4599963588864 4727324144256 4936355483968 5366624187008 5402656164864 5515211501632 6133284785152 6303098859008 6478966572708 7404533225952 7558794334826 8049936280512 8272817252448 8638622096944 9199927177728 9454648288512 9872710967936 10733248374016 11030423003264 11338191502239 12606197718016 12957933145416 14809066451904 15117588669652 16099872561024 16545634504896 17277244193888 18399854355456 18909296577024 19745421935872 21466496748032 22060846006528 22676383004478 25915866290832 26455780171891 29618132903808 30235177339304 32199745122048 33091269009792 34554488387776 37818593154048 39490843871744 42932993496064 44121692013056 45352766008956 51831732581664 52911560343782 59236265807616 60470354678608 64399490244096 66182538019584 69108976775552 78981687743488 79367340515673 88243384026112 90705532017912 103663465163328 105823120687564 118472531615232 120940709357216 128798980488192 132365076039168 138217953551104 158734681031346 181411064035824 207326930326656 211646241375128 236945063230464 241881418714432 264730152078336 276435907102208 317469362062692 362822128071648 414653860653312 423292482750256 483762837428864 552871814204416 634938724125384 725644256143296 829307721306624 846584965500512 967525674857728 1269877448250768 1451288512286592 1658615442613248 1693169931001024 1935051349715456 2539754896501536 2902577024573184 3386339862002048 3870102699430912 5079509793003072 5805154049146368 6772679724004096 10159019586006144 11610308098292736 13545359448008192 20318039172012288 27090718896016384 40636078344024576 81272156688049152
• Sum of all divisors σ(n): 253843138865254400
• Sum of proper divisors (its aliquot sum) s(n): 172570982177205248
• 81272156688049152 is an abundant number, because the sum of its proper divisors (172570982177205248) is greater than itself. Its abundance is 91298825489156096

Bases of 81272156688049152

• Binary: 100100000101111001001100010001101100001010110010000000000₂
• Hexadecimal: 0x120BC988D856400
• Base-36: M88KPCR5UDC

Squares and roots of 81272156688049152

• 81272156688049152 squared (81272156688049152²) is 6605163452726812507435059567919104
• 81272156688049152 cubed (81272156688049152³) is 536815879080189243957088754476900446444449911799808
• The square root of 81272156688049152 is 285082719.0273888769
• The cube root of 81272156688049152 is 433158.9193274141

Scales and comparisons

• 81,272,156,688,049,152 seconds is equal to 2,584,203,191 years, 20 weeks, 3 days, 5 hours, 39 minutes, 12 seconds.
• To count from 1 to 81,272,156,688,049,152 would take you about seven billion, seven hundred fifty-two million, six hundred nine thousand, five hundred seventy-four 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 81272156688049152 cubic inches would be around 36096.6 feet tall.

Recreational maths with 81272156688049152

• 81272156688049152 backwards is 25194088665127218
• The number of decimal digits it has is: 17
• The sum of 81272156688049152's digits is 75
• More coming soon!