81743688000

Names of 81743688000

• Cardinal: 81743688000 can be written as Eighty-one billion, seven hundred forty-three million, six hundred eighty-eight thousand.

Scientific notation

• Scientific notation: 8.1743688 × 10¹⁰

Factors of 81743688000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 743

Divisors of 81743688000

• Number of divisors d(n): 896
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 27 30 32 36 39 40 43 45 48 50 52 54 60 64 65 72 75 78 80 86 90 96 100 104 108 117 120 125 129 130 135 144 150 156 160 172 180 192 195 200 208 215 216 225 234 240 250 258 260 270 288 300 312 320 325 344 351 360 375 387 390 400 416 430 432 450 468 480 500 516 520 540 559 576 585 600 624 645 650 675 677 688 702 720 750 774 780 800 832 860 864 900 936 960 975 1000 1032 1040 1075 1080 1118 1125 1161 1170 1200 1248 1290 1300 1350 1354 1376 1404 1440 1500 1548 1560 1600 1625 1677 1720 1728 1755 1800 1872 1935 1950 2000 2031 2064 2080 2150 2160 2236 2250 2322 2340 2400 2496 2580 2600 2700 2708 2752 2795 2808 2880 2925 3000 3096 3120 3225 3250 3354 3375 3385 3440 3510 3600 3744 3870 3900 4000 4062 4128 4160 4300 4320 4472 4500 4644 4680 4800 4875 5031 5160 5200 5375 5400 5416 5590 5616 5805 5850 6000 6093 6192 6240 6450 6500 6708 6750 6770 6880 7020 7200 7488 7740 7800 8000 8124 8256 8385 8600 8640 8775 8801 8944 9000 9288 9360 9675 9750 10062 10155 10320 10400 10750 10800 10832 11180 11232 11610 11700 12000 12186 12384 12480 12900 13000 13416 13500 13540 13760 13975 14040 14400 14625 15093 15480 15600 16125 16248 16770 16925 17200 17550 17602 17888 18000 18279 18576 18720 19350 19500 20124 20310 20640 20800 21500 21600 21664 22360 22464 23220 23400 24000 24372 24768 25155 25800 26000 26403 26832 27000 27080 27950 28080 29025 29111 29250 30186 30465 30960 31200 32250 32496 33540 33850 34400 35100 35204 35776 36000 36558 37152 37440 38700 39000 40248 40620 41280 41925 43000 43200 43328 43875 44005 44720 46440 46800 48375 48744 50310 50775 51600 52000 52806 53664 54000 54160 55900 56160 58050 58222 58500 60372 60930 61920 62400 64500 64992 67080 67700 68800 69875 70200 70408 72000 73116 74304 75465 77400 78000 79209 80496 81240 83850 84625 86000 87333 87750 88010 89440 91395 92880 93600 96750 97488 100620 101550 103200 104000 105612 107328 108000 108320 111800 112320 116100 116444 117000 120744 121860 123840 125775 129000 129984 132015 134160 135400 139750 140400 140816 145125 145555 146232 150930 152325 154800 156000 158418 160992 162480 167700 169250 172000 174666 175500 176020 178880 182790 185760 187200 193500 194976 201240 203100 206400 209625 211224 216000 216640 220025 223600 232200 232888 234000 237627 241488 243720 251550 253875 258000 261999 264030 268320 270800 279500 280800 281632 290250 291110 292464 301860 304650 309600 312000 316836 321984 324960 335400 338500 344000 349332 351000 352040 365580 371520 377325 378443 387000 389952 396045 402480 406200 419250 422448 436665 440050 447200 456975 464400 465776 468000 475254 482976 487440 503100 507750 516000 523998 528060 536640 541600 559000 561600 563264 580500 582220 584928 603720 609300 619200 628875 633672 649920 660075 670800 677000 698664 702000 704080 727775 731160 754650 756886 761625 774000 785997 792090 804960 812400 838500 844896 873330 880100 894400 913950 928800 931552 936000 950508 965952 974880 1006200 1015500 1032000 1047996 1056120 1083200 1100125 1118000 1135329 1161000 1164440 1169856 1188135 1207440 1218600 1257750 1267344 1309995 1320150 1341600 1354000 1397328 1404000 1408160 1455550 1462320 1509300 1513772 1523250 1548000 1571994 1584180 1609920 1624800 1677000 1689792 1746660 1760200 1827900 1857600 1863104 1886625 1892215 1901016 1949760 1980225 2012400 2031000 2095992 2112240 2183325 2200250 2236000 2270658 2284875 2322000 2328880 2376270 2414880 2437200 2515500 2534688 2619990 2640300 2683200 2708000 2794656 2808000 2816320 2911100 2924640 3018600 3027544 3046500 3096000 3143988 3168360 3249600 3300375 3354000 3405987 3493320 3520400 3638875 3655800 3773250 3784430 3802032 3929985 3960450 4024800 4062000 4191984 4224480 4366650 4400500 4472000 4541316 4569750 4644000 4657760 4752540 4829760 4874400 5031000 5069376 5239980 5280600 5416000 5589312 5676645 5822200 5849280 5940675 6037200 6055088 6093000 6287976 6336720 6549975 6600750 6708000 6811974 6986640 7040800 7277750 7311600 7546500 7568860 7604064 7859970 7920900 8049600 8124000 8383968 8448960 8733300 8801000 9082632 9139500 9288000 9315520 9461075 9505080 9748800 9901125 10062000 10217961 10479960 10561200 10916625 11353290 11644400 11881350 12074400 12110176 12186000 12575952 12673440 13099950 13201500 13416000 13623948 13973280 14081600 14555500 14623200 15093000 15137720 15208128 15719940 15841800 16248000 16767936 17029935 17466600 17602000 18165264 18279000 18922150 19010160 19649925 19802250 20124000 20435922 20959920 21122400 21833250 22706580 23288800 23762700 24148800 24220352 24372000 25151904 25346880 26199900 26403000 27247896 27946560 28383225 29111000 29246400 29703375 30186000 30275440 31439880 31683600 32749875 34059870 34933200 35204000 36330528 36558000 37844300 38020320 39299850 39604500 40248000 40871844 41919840 42244800 43666500 45413160 46577600 47305375 47525400 48744000 50303808 51089805 52399800 52806000 54495792 56766450 58222000 59406750 60372000 60550880 62879760 63367200 65499750 68119740 69866400 70408000 72661056 73116000 75688600 76040640 78599700 79209000 81743688 83839680 85149675 87333000 90826320 94610750 95050800 98249625 102179610 104799600 105612000 108991584 113532900 116444000 118813500 120744000 121101760 125759520 126734400 130999500 136239480 139732800 141916125 146232000 151377200 157199400 158418000 163487376 170299350 174666000 181652640 189221500 190101600 196499250 204359220 209599200 211224000 217983168 227065800 232888000 237627000 251519040 255449025 261999000 272478960 283832250 302754400 314398800 316836000 326974752 340598700 349332000 363305280 378443000 380203200 392998500 408718440 419198400 425748375 454131600 475254000 510898050 523998000 544957920 567664500 605508800 628797600 633672000 653949504 681197400 698664000 756886000 785997000 817436880 851496750 908263200 950508000 1021796100 1047996000 1089915840 1135329000 1257595200 1277245125 1362394800 1513772000 1571994000 1634873760 1702993500 1816526400 1901016000 2043592200 2095992000 2270658000 2554490250 2724789600 3027544000 3143988000 3269747520 3405987000 4087184400 4541316000 5108980500 5449579200 6287976000 6811974000 8174368800 9082632000 10217961000 13623948000 16348737600 20435922000 27247896000 40871844000 81743688000
• Sum of all divisors σ(n): 330977687040
• Sum of proper divisors (its aliquot sum) s(n): 249233999040
• 81743688000 is an abundant number, because the sum of its proper divisors (249233999040) is greater than itself. Its abundance is 167490311040

Bases of 81743688000

• Binary: 1001100001000010011011011000101000000₂
• Hexadecimal: 0x13084DB140
• Base-36: 11JW2XC0

Squares and roots of 81743688000

• 81743688000 squared (81743688000²) is 6682030527841344000000
• 81743688000 cubed (81743688000³) is 546213818674338137436672000000000
• The square root of 81743688000 is 285908.5308276057
• The cube root of 81743688000 is 4339.9501647175

Scales and comparisons

• 81,743,688,000 seconds is equal to 2,599 years, 10 weeks, 1 day, 12 hours.
• To count from 1 to 81,743,688,000 would take you about five thousand, one hundred ninety-eight 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 81743688000 cubic inches would be around 361.7 feet tall.

Recreational maths with 81743688000

• 81743688000 backwards is 00088634718
• 81743688000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81743688000's digits is 45
• More coming soon!