81359616000

Names of 81359616000

• Cardinal: 81359616000 can be written as Eighty-one billion, three hundred fifty-nine million, six hundred sixteen thousand.

Scientific notation

• Scientific notation: 8.1359616 × 10¹⁰

Factors of 81359616000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 333

Divisors of 81359616000

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 25 26 29 30 32 39 40 48 50 52 58 60 64 65 75 78 80 87 96 100 104 116 120 125 128 130 145 150 156 160 174 192 195 200 208 232 240 250 256 260 281 290 300 312 320 325 348 375 377 384 390 400 416 435 464 480 500 512 520 562 580 600 624 640 650 696 725 750 754 768 780 800 832 843 870 928 960 975 1000 1024 1040 1124 1131 1160 1200 1248 1280 1300 1392 1405 1450 1500 1508 1536 1560 1600 1625 1664 1686 1740 1856 1885 1920 1950 2000 2048 2080 2175 2248 2262 2320 2400 2496 2560 2600 2784 2810 2900 3000 3016 3072 3120 3200 3250 3328 3372 3480 3625 3653 3712 3770 3840 3900 4000 4160 4215 4350 4496 4524 4640 4800 4875 4992 5120 5200 5568 5620 5655 5800 6000 6032 6144 6240 6400 6500 6656 6744 6960 7025 7250 7306 7424 7540 7680 7800 8000 8149 8320 8430 8700 8992 9048 9280 9425 9600 9750 9984 10240 10400 10875 10959 11136 11240 11310 11600 12000 12064 12480 12800 13000 13312 13488 13920 14050 14500 14612 14848 15080 15360 15600 16000 16298 16640 16860 17400 17984 18096 18265 18560 18850 19200 19500 19968 20800 21075 21750 21918 22272 22480 22620 23200 24000 24128 24447 24960 25600 26000 26624 26976 27840 28100 28275 29000 29224 29696 30160 30720 31200 32000 32596 33280 33720 34800 35125 35968 36192 36530 37120 37700 38400 39000 39936 40745 41600 42150 43500 43836 44544 44960 45240 46400 47125 48000 48256 48894 49920 51200 52000 53952 54795 55680 56200 56550 58000 58448 59392 60320 62400 64000 65192 66560 67440 69600 70250 71936 72384 73060 74240 75400 76800 78000 79872 81490 83200 84300 87000 87672 89088 89920 90480 91325 92800 94250 96000 96512 97788 99840 104000 105375 105937 107904 109590 111360 112400 113100 116000 116896 120640 122235 124800 128000 130384 133120 134880 139200 140500 141375 143872 144768 146120 148480 150800 153600 156000 162980 166400 168600 174000 175344 178176 179840 180960 182650 185600 188500 192000 193024 195576 199680 203725 208000 210750 211874 215808 219180 222720 224800 226200 232000 233792 241280 244470 249600 256000 260768 269760 273975 278400 281000 282750 287744 289536 292240 296960 301600 312000 317811 325960 332800 337200 348000 350688 359680 361920 365300 371200 377000 384000 386048 391152 399360 407450 416000 421500 423748 431616 438360 445440 449600 452400 456625 464000 467584 482560 488940 499200 521536 529685 539520 547950 556800 562000 565500 575488 579072 584480 603200 611175 624000 635622 651920 665600 674400 696000 701376 719360 723840 730600 742400 754000 768000 772096 782304 814900 832000 843000 847496 863232 876720 890880 899200 904800 913250 928000 935168 965120 977880 998400 1018625 1043072 1059370 1079040 1095900 1113600 1124000 1131000 1158144 1168960 1206400 1222350 1248000 1271244 1303840 1348800 1369875 1392000 1402752 1438720 1447680 1461200 1484800 1508000 1564608 1589055 1629800 1664000 1686000 1694992 1726464 1753440 1798400 1809600 1826500 1856000 1870336 1930240 1955760 1996800 2037250 2086144 2118740 2158080 2191800 2227200 2248000 2262000 2316288 2337920 2412800 2444700 2496000 2542488 2607680 2648425 2697600 2739750 2784000 2805504 2877440 2895360 2922400 3016000 3055875 3129216 3178110 3259600 3328000 3372000 3389984 3506880 3596800 3619200 3653000 3712000 3740672 3860480 3911520 4074500 4172288 4237480 4316160 4383600 4454400 4496000 4524000 4675840 4825600 4889400 4992000 5084976 5215360 5296850 5395200 5479500 5568000 5611008 5790720 5844800 6032000 6111750 6258432 6356220 6519200 6744000 6779968 7013760 7193600 7238400 7306000 7424000 7481344 7823040 7945275 8149000 8344576 8474960 8632320 8767200 8992000 9048000 9351680 9651200 9778800 9984000 10169952 10430720 10593700 10790400 10959000 11136000 11222016 11581440 11689600 12064000 12223500 12516864 12712440 13038400 13242125 13488000 13559936 14027520 14387200 14476800 14612000 15646080 15890550 16298000 16689152 16949920 17534400 17984000 18096000 18703360 19302400 19557600 20339904 20861440 21187400 21580800 21918000 22272000 22444032 23379200 24128000 24447000 25033728 25424880 26076800 26484250 26976000 27119872 28055040 28953600 29224000 31292160 31781100 32596000 33899840 35068800 35968000 36192000 37406720 39115200 39726375 40679808 41722880 42374800 43161600 43836000 46758400 48256000 48894000 50067456 50849760 52153600 52968500 53952000 54239744 56110080 57907200 58448000 62584320 63562200 65192000 67799680 70137600 71936000 72384000 78230400 79452750 81359616 83445760 84749600 87672000 93516800 96512000 97788000 101699520 104307200 105937000 107904000 108479488 112220160 116896000 125168640 127124400 130384000 135599360 140275200 144768000 156460800 158905500 162719232 169499200 175344000 187033600 195576000 203399040 208614400 211874000 215808000 216958976 233792000 250337280 254248800 260768000 271198720 280550400 289536000 312921600 317811000 325438464 338998400 350688000 391152000 406798080 417228800 423748000 467584000 508497600 521536000 542397440 561100800 625843200 635622000 650876928 677996800 701376000 782304000 813596160 847496000 935168000 1016995200 1043072000 1084794880 1251686400 1271244000 1355993600 1402752000 1564608000 1627192320 1694992000 2033990400 2086144000 2542488000 2711987200 2805504000 3129216000 3254384640 3389984000 4067980800 5084976000 5423974400 6258432000 6779968000 8135961600 10169952000 13559936000 16271923200 20339904000 27119872000 40679808000 81359616000
• Sum of all divisors σ(n): 302647363200
• Sum of proper divisors (its aliquot sum) s(n): 221287747200
• 81359616000 is an abundant number, because the sum of its proper divisors (221287747200) is greater than itself. Its abundance is 139928131200

Bases of 81359616000

• Binary: 1001011110001011010010011100000000000₂
• Hexadecimal: 0x12F1693800
• Base-36: 11DJEXHC

Squares and roots of 81359616000

• 81359616000 squared (81359616000²) is 6619387115667456000000
• 81359616000 cubed (81359616000³) is 538550793886051803856896000000000
• The square root of 81359616000 is 285236.0706502597
• The cube root of 81359616000 is 4333.1424189393

Scales and comparisons

• 81,359,616,000 seconds is equal to 2,586 years, 51 weeks, 1 day, 5 hours, 20 minutes.
• To count from 1 to 81,359,616,000 would take you about five thousand, one hundred seventy-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 81359616000 cubic inches would be around 361.1 feet tall.

Recreational maths with 81359616000

• 81359616000 backwards is 00061695318
• 81359616000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81359616000's digits is 39
• More coming soon!