81440352000

Names of 81440352000

• Cardinal: 81440352000 can be written as Eighty-one billion, four hundred forty million, three hundred fifty-two thousand.

Scientific notation

• Scientific notation: 8.1440352 × 10¹⁰

Factors of 81440352000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 245

Divisors of 81440352000

• Number of divisors d(n): 1296
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 29 30 32 35 36 40 42 45 48 49 50 56 58 60 63 64 70 72 75 80 84 87 90 96 98 100 105 112 116 120 125 126 128 140 144 145 147 150 160 168 174 175 180 192 196 199 200 203 210 224 225 232 240 245 250 252 256 261 280 288 290 294 300 315 320 336 348 350 360 375 384 392 398 400 406 420 435 441 448 450 464 480 490 500 504 522 525 560 576 580 588 597 600 609 630 640 672 696 700 720 725 735 750 768 784 796 800 812 840 870 875 882 896 900 928 960 980 995 1000 1008 1015 1044 1050 1120 1125 1152 1160 1176 1194 1200 1218 1225 1260 1280 1305 1344 1392 1393 1400 1421 1440 1450 1470 1500 1568 1575 1592 1600 1624 1680 1740 1750 1764 1791 1792 1800 1827 1856 1920 1960 1990 2000 2016 2030 2088 2100 2175 2205 2240 2250 2304 2320 2352 2388 2400 2436 2450 2520 2610 2625 2688 2784 2786 2800 2842 2880 2900 2940 2985 3000 3045 3136 3150 3184 3200 3248 3360 3480 3500 3528 3582 3600 3625 3654 3675 3712 3840 3920 3980 4000 4032 4060 4176 4179 4200 4263 4350 4410 4480 4500 4640 4704 4776 4800 4872 4900 4975 5040 5075 5220 5250 5376 5568 5572 5600 5684 5760 5771 5800 5880 5970 6000 6090 6125 6272 6300 6368 6400 6496 6525 6720 6960 6965 7000 7056 7105 7164 7200 7250 7308 7350 7424 7840 7875 7960 8000 8064 8120 8352 8358 8400 8526 8700 8820 8955 8960 9000 9135 9280 9408 9552 9600 9744 9751 9800 9950 10080 10150 10440 10500 10875 11025 11136 11144 11200 11368 11520 11542 11600 11760 11940 12000 12180 12250 12537 12544 12600 12736 12789 12992 13050 13440 13920 13930 14000 14112 14210 14328 14400 14500 14616 14700 14925 15225 15680 15750 15920 16000 16128 16240 16704 16716 16800 17052 17313 17400 17640 17910 18000 18270 18375 18560 18816 19104 19200 19488 19502 19600 19900 20160 20300 20880 20895 21000 21315 21750 22050 22272 22288 22400 22736 23084 23200 23520 23880 24000 24360 24500 24875 25074 25200 25375 25472 25578 25984 26100 26880 27840 27860 28000 28224 28420 28656 28800 28855 29000 29232 29253 29400 29850 30450 31360 31500 31840 32000 32480 32625 33408 33432 33600 34104 34626 34800 34825 35280 35525 35820 36000 36540 36750 37120 37632 38208 38976 39004 39200 39800 40320 40397 40600 41760 41790 42000 42630 43500 44100 44576 44775 44800 45472 45675 46168 46400 47040 47760 48000 48720 48755 49000 49750 50148 50400 50750 50944 51156 51939 51968 52200 55125 55680 55720 56000 56448 56840 57312 57600 57710 58000 58464 58506 58800 59700 60900 62685 62720 63000 63680 63945 64960 65250 66816 66864 67200 68208 69252 69600 69650 70560 71050 71640 72000 73080 73500 74625 76125 76416 77952 78008 78400 79600 80640 80794 81200 83520 83580 84000 85260 86565 87000 87759 88200 89152 89550 90944 91350 92336 92800 94080 95520 96000 97440 97510 98000 99500 100296 100800 101500 102312 103878 104400 104475 106575 110250 111360 111440 112000 112896 113680 114624 115420 116000 116928 117012 117600 119400 121191 121800 125370 126000 127360 127890 129920 130500 133728 134400 136416 138504 139200 139300 141120 142100 143280 144000 144275 146160 146265 147000 149250 152250 152832 155904 156016 156800 159200 161588 162400 167040 167160 168000 170520 173130 174000 174125 175518 176400 177625 178304 179100 181888 182700 184672 185600 188160 191040 194880 195020 196000 199000 200592 201600 201985 203000 204624 207756 208800 208950 213150 220500 222880 223875 224000 227360 228375 229248 230840 232000 233856 234024 235200 238800 242382 243600 243775 250740 252000 254720 255780 259695 259840 261000 267456 272832 277008 278400 278600 282240 282779 284200 286560 288000 288550 292320 292530 294000 298500 304500 312032 313425 313600 318400 319725 323176 324800 334080 334320 336000 341040 346260 348000 348250 351036 352800 355250 356608 358200 363573 363776 365400 369344 382080 389760 390040 392000 398000 401184 403200 403970 406000 409248 415512 417600 417900 426300 432825 438795 441000 445760 447750 454720 456750 458496 461680 464000 467712 468048 470400 477600 484764 487200 487550 501480 504000 511560 519390 522000 522375 532875 534912 545664 554016 556800 557200 564480 565558 568400 573120 577100 584640 585060 588000 597000 605955 609000 624064 626850 636800 639450 646352 649600 668640 672000 682080 692520 696000 696500 702072 705600 710500 716400 721375 727146 730800 731325 738688 764160 779520 780080 784000 796000 802368 807940 812000 818496 831024 835200 835800 848337 852600 865650 877590 882000 891520 895500 909440 913500 923360 928000 936096 940800 955200 969528 974400 975100 1002960 1008000 1009925 1023120 1038780 1044000 1044750 1065750 1069824 1091328 1108032 1114400 1131116 1136800 1146240 1154200 1169280 1170120 1176000 1194000 1211910 1218000 1218875 1248128 1253700 1273600 1278900 1292704 1298475 1299200 1337280 1364160 1385040 1392000 1393000 1404144 1411200 1413895 1421000 1432800 1442750 1454292 1461600 1462650 1477376 1560160 1567125 1568000 1592000 1598625 1604736 1615880 1624000 1636992 1662048 1670400 1671600 1696674 1705200 1731300 1755180 1764000 1783040 1791000 1817865 1818880 1827000 1846720 1872192 1910400 1939056 1948800 1950200 2005920 2016000 2019850 2046240 2077560 2088000 2089500 2131500 2164125 2193975 2216064 2228800 2262232 2273600 2292480 2308400 2338560 2340240 2352000 2388000 2423820 2436000 2437750 2496256 2507400 2545011 2557800 2585408 2596950 2674560 2728320 2770080 2784000 2786000 2808288 2822400 2827790 2842000 2865600 2885500 2908584 2923200 2925300 3029775 3120320 3134250 3184000 3197250 3209472 3231760 3248000 3273984 3324096 3343200 3393348 3410400 3462600 3510360 3528000 3582000 3635730 3654000 3656625 3693440 3744384 3820800 3878112 3897600 3900400 4011840 4039700 4092480 4155120 4176000 4179000 4241685 4263000 4328250 4387950 4432128 4457600 4524464 4547200 4616800 4680480 4704000 4776000 4847640 4872000 4875500 5014800 5049625 5090022 5115600 5170816 5193900 5349120 5456640 5540160 5572000 5616576 5655580 5684000 5731200 5771000 5817168 5846400 5850600 6059550 6240640 6268500 6368000 6394500 6463520 6492375 6496000 6648192 6686400 6786696 6820800 6925200 7020720 7056000 7069475 7164000 7271460 7308000 7313250 7386880 7488768 7756224 7800800 8023680 8079400 8184960 8310240 8352000 8358000 8483370 8526000 8656500 8775900 8915200 9048928 9089325 9094400 9233600 9360960 9552000 9695280 9744000 9751000 10029600 10099250 10180044 10231200 10341632 10387800 10969875 11080320 11144000 11233152 11311160 11368000 11462400 11542000 11634336 11692800 11701200 12119100 12481280 12537000 12725055 12789000 12927040 12984750 13296384 13372800 13573392 13641600 13850400 14041440 14112000 14138950 14328000 14542920 14616000 14626500 15148875 15512448 15601600 16047360 16158800 16369920 16620480 16716000 16966740 17052000 17313000 17551800 18097856 18178650 18467200 18721920 19104000 19390560 19488000 19502000 20059200 20198500 20360088 20462400 20775600 21208425 21939750 22160640 22288000 22466304 22622320 22736000 23084000 23268672 23402400 24238200 25074000 25450110 25578000 25854080 25969500 26745600 27146784 27283200 27700800 28082880 28277900 28656000 29085840 29232000 29253000 30297750 31024896 31203200 32317600 33240960 33432000 33933480 34104000 34626000 35103600 35347375 36195712 36357300 36934400 37443840 38781120 39004000 40118400 40397000 40720176 40924800 41551200 42416850 43879500 44576000 45244640 45446625 45472000 46168000 46537344 46804800 48476400 50148000 50900220 51156000 51708160 51939000 54293568 55401600 56165760 56555800 57312000 58171680 58464000 58506000 60595500 62406400 63625275 64635200 66481920 66864000 67866960 68208000 69252000 70207200 70694750 72391424 72714600 77562240 78008000 80236800 80794000 81440352 81849600 83102400 84833700 87759000 90489280 90893250 92336000 93074688 93609600 96952800 100296000 101800440 102312000 103878000 106042125 108587136 110803200 112331520 113111600 116343360 117012000 121191000 127250550 129270400 133728000 135733920 136416000 138504000 140414400 141389500 145429200 155124480 156016000 161588000 162880704 166204800 169667400 175518000 180978560 181786500 184672000 187219200 193905600 200592000 203600880 204624000 207756000 212084250 217174272 226223200 232686720 234024000 242382000 254501100 258540800 271467840 277008000 280828800 282779000 290858400 312032000 318126375 323176000 325761408 332409600 339334800 351036000 361957120 363573000 387811200 401184000 407201760 409248000 415512000 424168500 452446400 465373440 468048000 484764000 509002200 542935680 554016000 561657600 565558000 581716800 636252750 646352000 651522816 678669600 702072000 727146000 775622400 814403520 831024000 848337000 904892800 936096000 969528000 1018004400 1085871360 1131116000 1163433600 1272505500 1292704000 1357339200 1404144000 1454292000 1628807040 1662048000 1696674000 1809785600 1939056000 2036008800 2262232000 2326867200 2545011000 2714678400 2808288000 2908584000 3257614080 3393348000 3878112000 4072017600 4524464000 5090022000 5429356800 5817168000 6786696000 8144035200 9048928000 10180044000 11634336000 13573392000 16288070400 20360088000 27146784000 40720176000 81440352000
• Sum of all divisors σ(n): 354417336000
• Sum of proper divisors (its aliquot sum) s(n): 272976984000
• 81440352000 is an abundant number, because the sum of its proper divisors (272976984000) is greater than itself. Its abundance is 191536632000

Bases of 81440352000

• Binary: 1001011110110001110010010011100000000₂
• Hexadecimal: 0x12F6392700
• Base-36: 11EVHDS0

Squares and roots of 81440352000

• 81440352000 squared (81440352000²) is 6632530933883904000000
• 81440352000 cubed (81440352000³) is 540155653906393868894208000000000
• The square root of 81440352000 is 285377.5604352943
• The cube root of 81440352000 is 4334.5752548171

Scales and comparisons

• 81,440,352,000 seconds is equal to 2,589 years, 28 weeks, 4 days, 16 hours.
• To count from 1 to 81,440,352,000 would take you about five thousand, one hundred seventy-nine 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 81440352000 cubic inches would be around 361.2 feet tall.

Recreational maths with 81440352000

• 81440352000 backwards is 00025304418
• The number of decimal digits it has is: 11
• The sum of 81440352000's digits is 27
• More coming soon!