81394416000

Names of 81394416000

• Cardinal: 81394416000 can be written as Eighty-one billion, three hundred ninety-four million, four hundred sixteen thousand.

Scientific notation

• Scientific notation: 8.1394416 × 10¹⁰

Factors of 81394416000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 201

Divisors of 81394416000

• Number of divisors d(n): 1024
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 29 30 32 36 40 45 48 50 54 58 60 64 72 73 75 80 87 89 90 96 100 108 116 120 125 128 135 144 145 146 150 160 174 178 180 192 200 216 219 225 232 240 250 261 267 270 288 290 292 300 320 348 356 360 365 375 384 400 432 435 438 445 450 464 480 500 522 534 540 576 580 584 600 640 657 675 696 712 720 725 730 750 783 800 801 864 870 876 890 900 928 960 1000 1044 1068 1080 1095 1125 1152 1160 1168 1200 1305 1314 1335 1350 1392 1424 1440 1450 1460 1500 1566 1600 1602 1728 1740 1752 1780 1800 1825 1856 1920 1971 2000 2088 2117 2136 2160 2175 2190 2225 2250 2320 2336 2400 2403 2581 2610 2628 2670 2700 2784 2848 2880 2900 2920 3000 3132 3200 3204 3285 3375 3456 3480 3504 3560 3600 3625 3650 3712 3915 3942 4000 4005 4176 4234 4272 4320 4350 4380 4450 4500 4640 4672 4800 4806 5162 5220 5256 5340 5400 5475 5568 5696 5760 5800 5840 6000 6264 6351 6408 6497 6525 6570 6675 6750 6960 7008 7120 7200 7250 7300 7743 7830 7884 8000 8010 8352 8468 8544 8640 8700 8760 8900 9000 9125 9280 9344 9600 9612 9855 10324 10440 10512 10585 10680 10800 10875 10950 11125 11136 11392 11600 11680 12000 12015 12528 12702 12816 12905 12994 13050 13140 13350 13500 13920 14016 14240 14400 14500 14600 15486 15660 15768 16000 16020 16425 16704 16936 17088 17280 17400 17520 17800 18000 18250 18560 19053 19224 19491 19575 19710 20025 20648 20880 21024 21170 21360 21600 21750 21900 22250 23200 23229 23360 24000 24030 25056 25404 25632 25810 25988 26100 26280 26700 27000 27375 27840 28032 28480 28800 29000 29200 30972 31320 31536 31755 32040 32485 32625 32850 33375 33408 33872 34176 34800 35040 35600 36000 36500 38106 38448 38715 38982 39150 39420 40050 41296 41760 42048 42340 42720 43200 43500 43800 44500 46400 46458 46720 48000 48060 49275 50112 50808 51264 51620 51976 52200 52560 52925 53400 54000 54750 55680 56960 57159 58000 58400 58473 60075 61944 62640 63072 63510 64080 64525 64970 65250 65700 66750 67744 69600 69687 70080 71200 72000 73000 76212 76896 77430 77964 78300 78840 80100 82125 82592 83520 84096 84680 85440 86400 87000 87600 89000 92800 92916 95265 96120 97455 97875 98550 100125 100224 101616 102528 103240 103952 104400 105120 105850 106800 108000 109500 114318 116000 116145 116800 116946 120150 123888 125280 126144 127020 128160 129050 129940 130500 131400 133500 135488 139200 139374 140160 142400 144000 146000 152424 153792 154860 155928 156600 157680 158775 160200 162425 164250 165184 167040 169360 170880 174000 175200 175419 178000 185832 188413 190530 192240 193575 194910 195750 197100 200250 203232 206480 207904 208800 210240 211700 213600 216000 219000 228636 232000 232290 233600 233892 240300 246375 247776 250560 252288 254040 256320 258100 259880 261000 262800 264625 267000 270976 278400 278748 284800 285795 292000 292365 300375 304848 307584 309720 311856 313200 315360 317550 320400 322625 324850 328500 330368 338720 348000 348435 350400 350838 356000 371664 376826 381060 384480 387150 389820 391500 394200 400500 406464 412960 415808 417600 420480 423400 427200 432000 438000 457272 464000 464580 467784 476325 480600 487275 492750 495552 501120 508080 512640 516200 519760 522000 525600 529250 534000 557496 565239 571590 580725 584000 584730 600750 609696 619440 623712 626400 630720 635100 640800 645250 649700 657000 677440 696000 696870 700800 701676 712000 743328 753652 762120 768960 774300 779640 783000 788400 793875 801000 812125 812928 825920 831616 835200 846800 854400 876000 877095 914544 929160 935568 942065 952650 961200 967875 974550 985500 991104 1016160 1032400 1039520 1044000 1051200 1058500 1068000 1114992 1130478 1143180 1161450 1168000 1169460 1201500 1219392 1238880 1247424 1252800 1261440 1270200 1281600 1290500 1299400 1314000 1354880 1392000 1393740 1403352 1424000 1428975 1461825 1486656 1507304 1524240 1537920 1548600 1559280 1566000 1576800 1587750 1602000 1624250 1651840 1693600 1695717 1742175 1752000 1754190 1829088 1858320 1871136 1884130 1905300 1922400 1935750 1949100 1971000 2032320 2064800 2079040 2088000 2102400 2117000 2136000 2229984 2260956 2286360 2322900 2338920 2381625 2403000 2436375 2438784 2477760 2494848 2505600 2540400 2563200 2581000 2598800 2628000 2787480 2806704 2826195 2857950 2903625 2923650 2973312 3014608 3048480 3097200 3118560 3132000 3153600 3175500 3204000 3248500 3387200 3391434 3484350 3504000 3508380 3658176 3716640 3742272 3768260 3810600 3844800 3871500 3898200 3942000 4064640 4129600 4158080 4176000 4234000 4272000 4385475 4459968 4521912 4572720 4645800 4677840 4710325 4763250 4806000 4872750 4955520 5080800 5087151 5162000 5197600 5256000 5574960 5613408 5652390 5715900 5807250 5847300 6029216 6096960 6194400 6237120 6264000 6307200 6351000 6408000 6497000 6774400 6782868 6968700 7016760 7144875 7309125 7316352 7433280 7484544 7536520 7621200 7689600 7743000 7796400 7884000 8259200 8468000 8478585 8710875 8770950 8919936 9043824 9145440 9291600 9355680 9420650 9526500 9612000 9745500 10161600 10174302 10324000 10395200 10512000 11149920 11226816 11304780 11431800 11614500 11694600 12058432 12193920 12388800 12474240 12528000 12702000 12816000 12994000 13565736 13937400 14033520 14130975 14289750 14618250 14866560 15073040 15242400 15486000 15592800 15768000 16936000 16957170 17421750 17541900 18087648 18290880 18583200 18711360 18841300 19053000 19224000 19491000 20323200 20348604 20648000 20790400 21927375 22299840 22453632 22609560 22863600 23229000 23389200 23551625 24116864 24777600 25404000 25435755 25988000 27131472 27874800 28067040 28261950 28579500 29236500 30146080 30484800 30972000 31185600 31536000 33872000 33914340 34843500 35083800 36175296 36581760 37166400 37422720 37682600 38106000 38448000 38982000 40697208 41296000 42392925 43854750 44599680 45219120 45727200 46458000 46778400 47103250 50808000 50871510 51976000 54262944 55749600 56134080 56523900 57159000 58473000 60292160 60969600 61944000 62371200 67828680 69687000 70167600 70654875 72350592 74332800 75365200 76212000 77964000 81394416 84785850 87709500 90438240 91454400 92916000 93556800 94206500 101616000 101743020 103952000 108525888 111499200 112268160 113047800 114318000 116946000 120584320 123888000 127178775 135657360 139374000 140335200 141309750 150730400 152424000 155928000 162788832 169571700 175419000 180876480 182908800 185832000 187113600 188413000 203486040 211964625 217051776 222998400 226095600 228636000 233892000 254357550 271314720 278748000 280670400 282619500 301460800 304848000 311856000 325577664 339143400 350838000 361752960 371664000 376826000 406972080 423929250 452191200 457272000 467784000 508715100 542629440 557496000 561340800 565239000 602921600 635893875 651155328 678286800 701676000 753652000 813944160 847858500 904382400 914544000 935568000 1017430200 1085258880 1114992000 1130478000 1271787750 1356573600 1403352000 1507304000 1627888320 1695717000 1808764800 2034860400 2260956000 2543575500 2713147200 2806704000 3014608000 3255776640 3391434000 4069720800 4521912000 5087151000 5426294400 6782868000 8139441600 9043824000 10174302000 13565736000 16278883200 20348604000 27131472000 40697208000 81394416000
• Sum of all divisors σ(n): 317921760000
• Sum of proper divisors (its aliquot sum) s(n): 236527344000
• 81394416000 is an abundant number, because the sum of its proper divisors (236527344000) is greater than itself. Its abundance is 155132928000

Bases of 81394416000

• Binary: 1001011110011011111000011100110000000₂
• Hexadecimal: 0x12F37C3980
• Base-36: 11E44TC0

Squares and roots of 81394416000

• 81394416000 squared (81394416000²) is 6625050955981056000000
• 81394416000 cubed (81394416000³) is 539242153532319760183296000000000
• The square root of 81394416000 is 285297.0662309727
• The cube root of 81394416000 is 4333.7601367913

Scales and comparisons

• 81,394,416,000 seconds is equal to 2,588 years, 4 weeks, 5 days.
• To count from 1 to 81,394,416,000 would take you about five thousand, one hundred seventy-six 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 81394416000 cubic inches would be around 361.1 feet tall.

Recreational maths with 81394416000

• 81394416000 backwards is 00061449318
• 81394416000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81394416000's digits is 36
• More coming soon!