81684906149000

Names of 81684906149000

• Cardinal: 81684906149000 can be written as Eighty-one trillion, six hundred eighty-four billion, nine hundred six million, one hundred forty-nine thousand.

Scientific notation

• Scientific notation: 8.1684906149 × 10¹³

Factors of 81684906149000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 966

Divisors of 81684906149000

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 20 22 25 28 35 40 44 49 50 55 56 70 77 88 98 100 110 121 125 140 154 175 196 200 220 242 245 250 275 280 308 350 385 392 440 484 490 500 539 550 605 616 700 770 847 875 941 968 980 1000 1078 1100 1210 1225 1331 1375 1400 1540 1694 1750 1882 1925 1960 2156 2200 2420 2450 2662 2695 2750 3025 3080 3388 3500 3764 3850 4235 4312 4705 4840 4900 5324 5390 5500 5929 6050 6125 6587 6655 6776 7000 7528 7700 8470 9317 9410 9625 9800 10351 10648 10780 11000 11858 12100 12250 13174 13310 13475 14641 15125 15400 16940 18634 18820 19250 20702 21175 21560 23525 23716 24200 24500 26348 26620 26950 29282 29645 30250 32935 33275 33880 37268 37640 38500 41404 42350 46109 46585 47050 47432 49000 51755 52696 53240 53900 58564 59290 60500 65219 65870 66550 67375 72457 73205 74536 77000 82808 84700 92218 93170 94100 102487 103510 105875 107800 113861 117128 117625 118580 121000 130438 131740 133100 134750 144914 146410 148225 161051 164675 166375 169400 184436 186340 188200 204974 207020 211750 227722 230545 232925 235250 237160 258775 260876 263480 266200 269500 289828 292820 296450 322102 326095 329350 332750 362285 366025 368872 372680 409948 414040 423500 455444 461090 465850 470500 507199 512435 517550 521752 539000 569305 579656 585640 592900 644204 652190 658700 665500 717409 724570 732050 741125 797027 805255 819896 823375 847000 910888 922180 931700 941000 1014398 1024870 1035100 1127357 1138610 1152725 1164625 1185800 1252471 1288408 1293875 1304380 1317400 1331000 1434818 1449140 1464100 1482250 1594054 1610510 1630475 1646750 1771561 1811425 1830125 1844360 1863400 2028796 2049740 2070200 2254714 2277220 2305450 2329250 2504942 2535995 2562175 2587750 2608760 2846525 2869636 2898280 2928200 2964500 3188108 3221020 3260950 3293500 3543122 3587045 3622850 3660250 3985135 4026275 4057592 4099480 4509428 4554440 4610900 4658500 5009884 5071990 5124350 5175500 5579189 5636785 5693050 5739272 5763625 5929000 6262355 6376216 6442040 6521900 6587000 7086244 7174090 7245700 7320500 7891499 7970270 8052550 8152375 8767297 8857805 9018856 9057125 9221800 9317000 10019768 10143980 10248700 10351000 11158378 11273570 11386100 11527250 12400927 12524710 12679975 12810875 13043800 13777181 14172488 14232625 14348180 14491400 14641000 15782998 15940540 16105100 16304750 17534594 17715610 17935225 18114250 19925675 20131375 20287960 20497400 22316756 22547140 22772200 23054500 24801854 25049420 25359950 25621750 27554362 27895945 28183925 28465250 28696360 31311775 31565996 31881080 32210200 32609500 35069188 35431220 35870450 36228500 39457495 39851350 40262750 43836485 44289025 44633512 45094280 46109000 49603708 50098840 50719900 51243500 55108724 55791890 56367850 56930500 61371079 62004635 62623550 63131992 63399875 65219000 68885905 70138376 70862440 71740900 72457000 78914990 79702700 80525500 86806489 87672970 88578050 89676125 96440267 99207416 99628375 101439800 102487000 110217448 111583780 112735700 113861000 122742158 124009270 125247100 126799750 137771810 139479725 140919625 143481800 151548991 156558875 157829980 159405400 161051000 173612978 175345940 177156100 179352250 192880534 197287475 199256750 219182425 221445125 223167560 225471400 245484316 248018540 250494200 253599500 275543620 278959450 281839250 303097982 306855395 310023175 313117750 315659960 344429525 347225956 350691880 354312200 358704500 385761068 394574950 398513500 434032445 438364850 442890250 482201335 490968632 496037080 507199000 551087240 557918900 563678500 606195964 613710790 620046350 626235500 675081869 688859050 694451912 697398625 717409000 757744955 771522136 789149900 797027000 868064890 876729700 885780500 964402670 986437375 1060842937 1095912125 1115837800 1127357000 1212391928 1227421580 1240092700 1252471000 1350163738 1377718100 1394797250 1515489910 1534276975 1550115875 1578299800 1667038901 1722147625 1736129780 1753459400 1771561000 1928805340 1972874750 2121685874 2170162225 2191824250 2411006675 2454843160 2480185400 2700327476 2755436200 2789594500 3030979820 3068553950 3100231750 3334077802 3375409345 3444295250 3472259560 3788724775 3857610680 3945749500 4243371748 4340324450 4383648500 4822013350 5304214685 5400654952 5579189000 6061959640 6137107900 6200463500 6668155604 6750818690 6888590500 7425900559 7577449550 7671384875 7891499000 8335194505 8486743496 8680648900 8767297000 9644026700 10608429370 10850811125 11669272307 12055033375 12274215800 12400927000 13336311208 13501637380 13777181000 14851801118 15154899100 15342769750 16670389010 16877046725 17361297800 18943623875 19288053400 21216858740 21701622250 23338544614 24110066750 26521073425 27003274760 29703602236 30309798200 30685539500 33340778020 33754093450 37129502795 37887247750 41675972525 42433717480 43403244500 46677089228 48220133500 53042146850 58346361535 59407204472 61371079000 66681556040 67508186900 74259005590 75774495500 81684906149 83351945050 84385233625 86806489000 93354178456 96440267000 106084293700 116692723070 132605367125 135016373800 148518011180 151548991000 163369812298 166703890100 168770467250 185647513975 208379862625 212168587400 233385446140 265210734250 291731807675 297036022360 326739624596 333407780200 337540934500 371295027950 408424530745 416759725250 466770892280 530421468500 583463615350 653479249192 675081869000 742590055900 816849061490 833519450500 928237569875 1060842937000 1166927230700 1458659038375 1485180111800 1633698122980 1667038901000 1856475139750 2042122653725 2333854461400 2917318076750 3267396245960 3712950279500 4084245307450 5834636153500 7425900559000 8168490614900 10210613268625 11669272307000 16336981229800 20421226537250 40842453074500 81684906149000
• Sum of all divisors σ(n): 244844520799320
• Sum of proper divisors (its aliquot sum) s(n): 163159614650320
• 81684906149000 is an abundant number, because the sum of its proper divisors (163159614650320) is greater than itself. Its abundance is 81474708501320

Bases of 81684906149000

• Binary: 10010100100101010111111110100001000010010001000₂
• Hexadecimal: 0x4A4ABFD08488
• Base-36: SYDJ02UTK

Squares and roots of 81684906149000

• 81684906149000 squared (81684906149000²) is 6672423892570938010201000000
• 81684906149000 cubed (81684906149000³) is 545036319451002329688165489625949000000000
• The square root of 81684906149000 is 9037970.2449720423
• The cube root of 81684906149000 is 43389.0962982731

Scales and comparisons

• 81,684,906,149,000 seconds is equal to 2,597,327 years, 18 weeks, 12 hours, 3 minutes, 20 seconds.
• To count from 1 to 81,684,906,149,000 would take you about six million, four hundred ninety-three thousand, three hundred eighteen 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 81684906149000 cubic inches would be around 3615.8 feet tall.

Recreational maths with 81684906149000

• 81684906149000 backwards is 00094160948618
• 81684906149000 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81684906149000's digits is 56
• More coming soon!