81002080429760

Names of 81002080429760

• Cardinal: 81002080429760 can be written as Eighty-one trillion, two billion, eighty million, four hundred twenty-nine thousand, seven hundred sixty.

Scientific notation

• Scientific notation: 8.100208042976 × 10¹³

Factors of 81002080429760

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 5436

Divisors of 81002080429760

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 43 49 56 64 70 76 80 86 95 98 112 133 140 152 160 172 190 196 215 224 245 266 280 301 304 320 344 380 392 430 448 490 532 560 602 608 665 688 760 784 817 860 931 980 1064 1120 1204 1216 1330 1376 1505 1520 1568 1634 1720 1753 1862 1960 2107 2128 2240 2408 2660 2752 3010 3040 3136 3268 3440 3506 3607 3724 3920 4085 4214 4256 4655 4816 5320 5719 6020 6080 6536 6880 7012 7214 7448 7840 8170 8428 8512 8765 9310 9632 10535 10640 11438 12040 12271 13072 13760 14024 14428 14896 15680 16340 16856 17530 18035 18620 19264 21070 21280 22876 24080 24542 25249 26144 28048 28595 28856 29792 32680 33307 33712 35060 36070 37240 40033 42140 42560 45752 48160 49084 50498 52288 56096 57190 57712 59584 61355 65360 66614 67424 68533 70120 72140 74480 75379 80066 84280 85897 91504 96320 98168 100996 112192 114380 115424 122710 126245 130720 133228 134848 137066 140240 144280 148960 150758 155101 160132 166535 168560 171794 176743 183008 196336 200165 201992 228760 230848 233149 245420 252490 261440 266456 274132 280480 288560 297920 301516 310202 320264 333070 337120 342665 343588 353486 366016 376895 392672 400330 403984 429485 457520 466298 479731 490840 504980 527653 532912 548264 560960 577120 603032 620404 640528 666140 674240 685330 687176 706972 753790 775505 785344 800660 807968 858970 883715 915040 932596 959462 981680 1009960 1055306 1065824 1085707 1096528 1154240 1165745 1206064 1240808 1281056 1332280 1370660 1374352 1413944 1432201 1507580 1551010 1601320 1615936 1632043 1717940 1767430 1830080 1865192 1918924 1963360 2019920 2110612 2131648 2171414 2193056 2331490 2398655 2412128 2481616 2562112 2638265 2664560 2741320 2748704 2827888 2864402 2946919 3015160 3102020 3202640 3264086 3358117 3435880 3534860 3693571 3730384 3837848 3926720 4039840 4221224 4342828 4386112 4662980 4797310 4824256 4963232 5276530 5329120 5428535 5482640 5497408 5655776 5728804 5893838 6030320 6204040 6323071 6405280 6528172 6716234 6871760 7069720 7161005 7387142 7460768 7599949 7675696 8079680 8160215 8442448 8685656 9325960 9594620 9926464 10025407 10553060 10658240 10857070 10965280 11311552 11457608 11787676 12060640 12408080 12646142 12810560 13056344 13432468 13743520 14139440 14322010 14734595 14774284 14921536 15199898 15351392 16320430 16790585 16884896 17371312 18467855 18651920 19189240 20050814 20628433 21106120 21714140 21930560 22915216 23575352 24121280 24816160 25292284 26112688 26864936 27487040 28278880 28644020 29469190 29548568 30399796 30702784 31615355 32640860 33581170 33769792 34742624 36935710 37303840 37999745 38378480 40101628 41256866 42212240 43428280 44261497 45830432 47150704 49632320 50127035 50584568 52225376 53729872 56557760 57288040 58938380 59097136 60799592 63230710 65281720 67162340 69485248 70177849 73871420 74607680 75999490 76756960 80203256 82513732 84424480 86856560 88522994 91660864 94301408 100254070 101169136 103142165 104450752 107459744 114576080 117876760 118194272 120138349 121599184 126461420 130563440 134324680 140355698 144399031 147742840 151998980 153513920 160406512 165027464 168848960 173713120 177045988 188602816 200508140 202338272 206284330 214919488 221307485 229152160 235753520 236388544 240276698 243198368 252922840 261126880 268649360 271892053 280711396 288798062 295485680 303997960 309830479 320813024 330054928 347426240 350889245 354091976 401016280 404676544 412568660 442614970 458304320 471507040 480553396 486396736 505845680 522253760 537298720 543784106 561422792 577596124 590971360 600691745 607995920 619660958 641626048 660109856 701778490 708183952 721995155 802032560 825137320 840968443 885229940 943014080 961106792 1011691360 1074597440 1087568212 1122845584 1155192248 1181942720 1201383490 1215991840 1239321916 1320219712 1359460265 1403556980 1416367904 1443990310 1549152395 1604065120 1650274640 1681936886 1770459880 1903244371 1922213584 2023382720 2175136424 2245691168 2310384496 2402766980 2431983680 2478643832 2718920530 2807113960 2832735808 2887980620 3098304790 3208130240 3300549280 3363873772 3540919760 3806488742 3844427168 4204842215 4350272848 4491382336 4620768992 4805533960 4957287664 5165949007 5437841060 5614227920 5775961240 5886779101 6196609580 6601098560 6727747544 7081839520 7612977484 7688854336 8409684430 8700545696 9241537984 9516221855 9611067920 9914575328 10331898014 10875682120 11228455840 11551922480 11773558202 12393219160 13322710597 13455495088 14163679040 15225954968 16819368860 17401091392 19032443710 19222135840 19829150656 20663796028 21751364240 22456911680 23103844960 23547116404 24786438320 25829745035 26645421194 26910990176 29433895505 30451909936 33638737720 36161643049 38064887420 38444271680 41327592056 43502728480 46207689920 47094232808 49572876640 51659490070 53290842388 53821980352 58867791010 60903819872 66613552985 67277475440 72323286098 76129774840 82655184112 87005456960 94188465616 99145753280 103318980140 106581684776 117735582020 121807639744 133227105970 134554950880 144646572196 152259549680 165310368224 180808215245 188376931232 206637960280 213163369552 235471164040 253131501343 266454211940 269109901760 289293144392 304519099360 330620736448 361616430490 376753862464 413275920560 426326739104 470942328080 506263002686 532908423880 578586288784 609038198720 723232860980 826551841120 852653478208 941884656160 1012526005372 1065816847760 1157172577568 1265657506715 1446465721960 1653103682240 1883769312320 2025052010744 2131633695520 2314345155136 2531315013430 2892931443920 4050104021488 4263267391040 5062630026860 5785862887840 8100208042976 10125260053720 11571725775680 16200416085952 20250520107440 40501040214880 81002080429760
• Sum of all divisors σ(n): 241884821629440
• Sum of proper divisors (its aliquot sum) s(n): 160882741199680
• 81002080429760 is an abundant number, because the sum of its proper divisors (160882741199680) is greater than itself. Its abundance is 79880660769920

Bases of 81002080429760

• Binary: 10010011010101111000100001110101110011011000000₂
• Hexadecimal: 0x49ABC43AE6C0
• Base-36: SPNUB9XVK

Squares and roots of 81002080429760

• 81002080429760 squared (81002080429760²) is 6561337033949307986293657600
• 81002080429760 cubed (81002080429760³) is 531481950150724765160452356597370290176000
• The square root of 81002080429760 is 9000115.5786889759
• The cube root of 81002080429760 is 43267.8575380173

Scales and comparisons

• 81,002,080,429,760 seconds is equal to 2,575,615 years, 31 weeks, 2 days, 1 hour, 9 minutes, 20 seconds.
• To count from 1 to 81,002,080,429,760 would take you about six million, four hundred thirty-nine thousand and thirty-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 81002080429760 cubic inches would be around 3605.7 feet tall.

Recreational maths with 81002080429760

• 81002080429760 backwards is 06792408020018
• The number of decimal digits it has is: 14
• The sum of 81002080429760's digits is 47
• More coming soon!