81443734692542320

Names of 81443734692542320

• Cardinal: 81443734692542320 can be written as Eighty-one quadrillion, four hundred forty-three trillion, seven hundred thirty-four billion, six hundred ninety-two million, five hundred forty-two thousand, three hundred twenty.

Scientific notation

• Scientific notation: 8.144373469254232 × 10¹⁶

Factors of 81443734692542320

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 794

Divisors of 81443734692542320

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 37 40 49 56 70 74 80 98 112 140 148 185 196 245 259 280 296 370 392 490 518 560 592 740 743 784 980 1036 1295 1369 1480 1486 1813 1960 2072 2590 2738 2960 2972 3626 3715 3920 4144 5180 5201 5476 5944 6845 7252 7430 9065 9583 10360 10402 10952 11888 13690 14504 14860 18130 19166 20720 20804 21904 26005 27380 27491 29008 29720 36260 36407 38332 41608 47915 50653 52010 54760 54982 59440 67081 72520 72814 76664 83216 95830 101306 104020 109520 109964 134162 137455 145040 145628 153328 182035 191660 192437 202612 208040 219928 253265 268324 274910 291256 335405 354571 364070 383320 384874 405224 416080 439856 506530 536648 549820 552049 582512 670810 709142 728140 766640 769748 810448 962185 1013060 1017167 1073296 1099640 1104098 1341620 1347059 1418284 1456280 1539496 1772855 1924370 2026120 2034334 2199280 2208196 2481997 2683240 2694118 2760245 2836568 2912560 3078992 3545710 3848740 3864343 4052240 4068668 4416392 4963994 5085835 5366480 5388236 5520490 5673136 6735295 7091420 7120169 7697480 7728686 8137336 8832784 9927988 10171670 10776472 11040980 12409985 13470590 14182840 14240338 15394960 15457372 16274672 19321715 19855976 20343340 20425813 21552944 22081960 24819970 26941180 27050401 28365680 28480676 30914744 35600845 37635179 38643430 39711952 40686680 40851626 44163920 49639940 49841183 53882360 54100802 56961352 61829488 71201690 75270358 77286860 81373360 81703252 99279880 99682366 102129065 107764720 108201604 113922704 135252005 142403380 142980691 150540716 154573720 163406504 188175895 198559760 199364732 204258130 216403208 249205915 263446253 270504010 284806760 285961382 301081432 309147440 326813008 376351790 398729464 408516260 410172407 432806416 498411830 526892506 541008020 569613520 571922764 602162864 714903455 752703580 755755081 797458928 817032520 820344814 996823660 1000864837 1053785012 1082016040 1143845528 1317231265 1429806910 1505407160 1511510162 1634065040 1640689628 1844123771 1993647320 2001729674 2050862035 2107570024 2164032080 2287691056 2634462530 2859613820 2871206849 3010814320 3023020324 3281379256 3688247542 3778775405 3987294640 4003459348 4101724070 4215140048 5004324185 5268925060 5290285567 5719227640 5742413698 6046040648 6562758512 7376495084 7557550810 8006918696 8203448140 9220618855 10008648370 10537850120 10580571134 11438455280 11484827396 12092081296 14356034245 14752990168 15115101620 15176379059 16013837392 16406896280 18441237710 20017296740 20098447943 21075700240 21161142268 22969654792 26451427835 27962937997 28712068490 29505980336 30230203240 30352758118 32813792560 36882475420 37031998969 40034593480 40196895886 42322284536 45939309584 52902855670 55925875994 57424136980 60460406480 60705516236 73764950840 74063997938 75881895295 80069186960 80393791772 84644569072 100492239715 105805711340 106234653413 111851751988 114848273960 121411032472 139814689985 147529901680 148127995876 151763790590 160787583544 185159994845 195740565979 200984479430 211611422680 212469306826 223703503976 229696547920 242822064944 279629379970 296255991752 303527581180 321575167088 370319989690 391481131958 401968958860 423222845360 424938613652 447407007952 531173267065 559258759940 561526025183 592511983504 607055162360 740639979380 743642573891 782962263916 803937917720 849877227304 978702829895 1062346534130 1118517519880 1123052050366 1214110324720 1370183961853 1481279958760 1487285147782 1565924527832 1607875835440 1699754454608 1957405659790 2124693068260 2237035039760 2246104100732 2740367923706 2807630125915 2962559917520 2974570295564 3131849055664 3718212869455 3914811319580 3930682176281 4249386136520 4492208201464 5480735847412 5615260251830 5949140591128 6850919809265 7436425738910 7829622639160 7861364352562 8498772273040 8984416402928 10961471694824 11230520503660 11898281182256 13701839618530 14872851477820 15659245278320 15722728705124 19653410881405 20776462931771 21922943389648 22461041007320 27403679237060 27514775233967 29745702955640 31445457410248 39306821762810 41552925863542 44922082014640 54807358474120 55029550467934 59491405911280 62890914820496 78613643525620 83105851727084 103882314658855 109614716948240 110059100935868 137573876169835 145435240522397 157227287051240 166211703454168 207764629317710 220118201871736 275147752339670 290870481044794 314454574102480 332423406908336 415529258635420 440236403743472 550295504679340 581740962089588 727176202611985 831058517270840 1018046683656779 1100591009358680 1163481924179176 1454352405223970 1662117034541680 2036093367313558 2201182018717360 2326963848358352 2908704810447940 4072186734627116 5090233418283895 5817409620895880 8144373469254232 10180466836567790 11634819241791760 16288746938508464 20360933673135580 40721867346271160 81443734692542320
• Sum of all divisors σ(n): 226695716175024000
• Sum of proper divisors (its aliquot sum) s(n): 145251981482481680
• 81443734692542320 is an abundant number, because the sum of its proper divisors (145251981482481680) is greater than itself. Its abundance is 63808246789939360

Bases of 81443734692542320

• Binary: 100100001010110001010010100101011100001111011011101110000₂
• Hexadecimal: 0x12158A52B87B770
• Base-36: M9XE7790W34

Squares and roots of 81443734692542320

• 81443734692542320 squared (81443734692542320²) is 6633081920669221467260624990982400
• 81443734692542320 cubed (81443734692542320³) is 540222964140883117256982637969800260186530375168000
• The square root of 81443734692542320 is 285383487.0705421877
• The cube root of 81443734692542320 is 433463.5267378525

Scales and comparisons

• 81,443,734,692,542,320 seconds is equal to 2,589,658,841 years, 10 weeks, 6 days, 17 hours, 18 minutes, 40 seconds.
• To count from 1 to 81,443,734,692,542,320 would take you about seven billion, seven hundred sixty-eight million, nine hundred seventy-six thousand, five hundred twenty-three 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 81443734692542320 cubic inches would be around 36122 feet tall.

Recreational maths with 81443734692542320

• 81443734692542320 backwards is 02324529643734418
• The number of decimal digits it has is: 17
• The sum of 81443734692542320's digits is 67
• More coming soon!