81638327320576

Names of 81638327320576

• Cardinal: 81638327320576 can be written as Eighty-one trillion, six hundred thirty-eight billion, three hundred twenty-seven million, three hundred twenty thousand, five hundred seventy-six.

Scientific notation

• Scientific notation: 8.1638327320576 × 10¹³

Factors of 81638327320576

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 28
• Sum of prime factors: 106

Divisors of 81638327320576

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 8 13 16 19 26 31 32 38 41 52 62 64 76 82 104 124 128 152 164 208 247 248 256 304 328 403 416 494 496 512 533 589 608 656 779 806 832 961 988 992 1024 1066 1178 1216 1271 1312 1558 1612 1664 1922 1976 1984 2048 2132 2356 2432 2542 2624 3116 3224 3328 3844 3952 3968 4096 4264 4712 4864 5084 5248 6232 6448 6656 7657 7688 7904 7936 8192 8528 9424 9728 10127 10168 10496 12464 12493 12896 13312 15314 15376 15808 15872 16384 16523 17056 18259 18848 19456 20254 20336 20992 24149 24928 24986 25792 26624 30628 30752 31616 31744 32768 33046 34112 36518 37696 38912 39401 40508 40672 41984 48298 49856 49972 51584 53248 61256 61504 63232 63488 65536 66092 68224 73036 75392 77824 78802 81016 81344 83968 96596 99712 99944 103168 106496 122512 123008 126464 126976 131072 132184 136448 146072 150784 155648 157604 162032 162688 167936 193192 199424 199888 206336 212992 237367 245024 246016 252928 253952 262144 264368 272896 292144 301568 311296 313937 315208 324064 325376 335872 386384 398848 399776 412672 425984 474734 490048 492032 505856 507904 512213 524288 528736 545792 584288 603136 622592 627874 630416 648128 650752 671744 748619 772768 797696 799552 825344 851968 949468 980096 984064 1011712 1015808 1024426 1048576 1057472 1091584 1168576 1206272 1245184 1255748 1260832 1296256 1301504 1343488 1497238 1545536 1595392 1599104 1650688 1703936 1898936 1960192 1968128 2023424 2031616 2048852 2097152 2114944 2183168 2337152 2412544 2490368 2511496 2521664 2592512 2603008 2686976 2994476 3091072 3190784 3198208 3301376 3407872 3797872 3920384 3936256 4046848 4063232 4097704 4194304 4229888 4366336 4674304 4825088 4980736 5022992 5043328 5185024 5206016 5373952 5988952 6182144 6381568 6396416 6602752 6815744 7595744 7840768 7872512 8093696 8126464 8195408 8388608 8459776 8732672 9348608 9650176 9732047 9961472 10045984 10086656 10370048 10412032 10747904 11977904 12364288 12763136 12792832 13205504 13631488 15191488 15681536 15745024 16187392 16252928 16390816 16919552 17465344 18697216 19300352 19464094 19922944 20091968 20173312 20740096 20824064 21495808 23955808 24728576 25526272 25585664 26411008 27262976 30382976 31363072 31490048 32374784 32505856 32781632 33839104 34930688 37394432 38600704 38928188 39845888 40183936 40346624 41480192 41648128 42991616 47911616 49457152 51052544 51171328 52822016 54525952 60765952 62726144 62980096 64749568 65011712 65563264 67678208 69861376 74788864 77201408 77856376 79691776 80367872 80693248 82960384 83296256 85983232 95823232 98914304 102105088 102342656 105644032 109051904 121531904 125452288 125960192 129499136 130023424 131126528 135356416 139722752 149577728 154402816 155712752 159383552 160735744 161386496 165920768 166592512 171966464 191646464 197828608 204210176 204685312 211288064 243063808 250904576 251920384 258998272 260046848 262253056 270712832 279445504 299155456 308805632 311425504 321471488 322772992 331841536 333185024 343932928 383292928 395657216 408420352 409370624 422576128 486127616 501809152 503840768 517996544 524506112 541425664 558891008 598310912 617611264 622851008 642942976 645545984 663683072 666370048 766585856 791314432 816840704 818741248 845152256 972255232 1003618304 1007681536 1035993088 1049012224 1082851328 1117782016 1196621824 1235222528 1245702016 1285885952 1291091968 1327366144 1332740096 1533171712 1582628864 1633681408 1637482496 1690304512 1944510464 2007236608 2015363072 2071986176 2098024448 2165702656 2235564032 2393243648 2470445056 2491404032 2571771904 2582183936 2654732288 2665480192 3066343424 3165257728 3267362816 3274964992 3380609024 3889020928 4014473216 4030726144 4196048896 4331405312 4471128064 4786487296 4940890112 4982808064 5143543808 5164367872 5309464576 5330960384 6132686848 6330515456 6534725632 6549929984 7778041856 8028946432 8061452288 8392097792 8662810624 9572974592 9965616128 10287087616 10328735744 10618929152 10661920768 12265373696 12661030912 13099859968 15556083712 16057892864 16784195584 17325621248 19145949184 19931232256 20574175232 20657471488 21237858304 24530747392 25322061824 26199719936 31112167424 32115785728 33568391168 34651242496 38291898368 39862464512 41148350464 41314942976 42475716608 49061494784 50644123648 52399439872 62224334848 64231571456 67136782336 69302484992 76583796736 79724929024 82296700928 82629885952 84951433216 98122989568 101288247296 104798879744 124448669696 134273564672 138604969984 153167593472 159449858048 164593401856 165259771904 196245979136 202576494592 248897339392 268547129344 318899716096 329186803712 330519543808 392491958272 497794678784 537094258688 637799432192 658373607424 784983916544 995589357568 1074188517376 1275598864384 1316747214848 1569967833088 1991178715136 2148377034752 2551197728768 2633494429696 3139935666176 4296754069504 5102395457536 6279871332352 10204790915072 20409581830144 40819163660288 81638327320576
• Sum of all divisors σ(n): 195918948061200
• Sum of proper divisors (its aliquot sum) s(n): 114280620740624
• 81638327320576 is an abundant number, because the sum of its proper divisors (114280620740624) is greater than itself. Its abundance is 32642293420048

Bases of 81638327320576

• Binary: 10010100011111111100111100000000000000000000000₂
• Hexadecimal: 0x4A3FE7800000
• Base-36: SXS4O8WSG

Squares and roots of 81638327320576

• 81638327320576 squared (81638327320576²) is 6664816487701505735472971776
• 81638327320576 cubed (81638327320576³) is 544104469954547213986315872165842152062976
• The square root of 81638327320576 is 9035393.0363087139
• The cube root of 81638327320576 is 43380.8475383593

Scales and comparisons

• 81,638,327,320,576 seconds is equal to 2,595,846 years, 14 weeks, 5 days, 16 hours, 36 minutes, 16 seconds.
• To count from 1 to 81,638,327,320,576 would take you about six million, four hundred eighty-nine thousand, six hundred fifteen 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 81638327320576 cubic inches would be around 3615.1 feet tall.

Recreational maths with 81638327320576

• 81638327320576 backwards is 67502372383618
• The number of decimal digits it has is: 14
• The sum of 81638327320576's digits is 61
• More coming soon!