81819838038016

Names of 81819838038016

• Cardinal: 81819838038016 can be written as Eighty-one trillion, eight hundred nineteen billion, eight hundred thirty-eight million, thirty-eight thousand and sixteen.

Scientific notation

• Scientific notation: 8.1819838038016 × 10¹³

Factors of 81819838038016

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 460

Divisors of 81819838038016

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 97 104 128 137 194 208 211 256 274 388 416 422 512 548 776 832 844 1024 1096 1261 1552 1664 1688 1781 2048 2192 2522 2743 3104 3328 3376 3562 4096 4384 5044 5486 6208 6656 6752 7124 8192 8768 10088 10972 12416 13289 13312 13504 14248 16384 17536 18769 20176 20467 21944 24832 26578 26624 27008 28496 28907 35072 37538 40352 40934 43888 49664 53156 53248 54016 56992 57814 70144 75076 80704 81868 87776 99328 106312 106496 108032 113984 115628 140288 150152 161408 163736 172757 175552 198656 212624 212992 216064 227968 231256 243997 266071 280576 300304 322816 327472 345514 351104 375791 397312 425248 432128 455936 462512 487994 532142 561152 600608 645632 654944 691028 702208 751582 794624 850496 864256 911872 925024 975988 1064284 1122304 1201216 1291264 1309888 1382056 1404416 1503164 1589248 1700992 1728512 1820593 1823744 1850048 1951976 2128568 2244608 2402432 2582528 2619776 2764112 2803979 2808832 3006328 3401984 3457024 3641186 3647488 3700096 3903952 3960259 4257136 4804864 5165056 5239552 5528224 5607958 5617664 6012656 6803968 7282372 7294976 7400192 7807904 7920518 8514272 9609728 10330112 10479104 11056448 11215916 11235328 12025312 13607936 14564744 14589952 14800384 15615808 15841036 17028544 19219456 20660224 20958208 22112896 22431832 22470656 23667709 24050624 27215872 29129488 29179904 29600768 31231616 31682072 34057088 36451727 38438912 41916416 44225792 44863664 44941312 47335418 48101248 51483367 54431744 58258976 59201536 62463232 63364144 68114176 72903454 76877824 83832832 88451584 89727328 94670836 96202496 102966734 108863488 116517952 118403072 124926464 126728288 136228352 145806908 153755648 167665664 176903168 179454656 189341672 192404992 205933468 217726976 233035904 236806144 249852928 253456576 272456704 291613816 307511296 335331328 353806336 358909312 378683344 384145123 384809984 411866936 466071808 473612288 499705856 506913152 544913408 583227632 707612672 717818624 757366688 768290246 769619968 823733872 932143616 999411712 1013826304 1089826816 1166455264 1415225344 1435637248 1514733376 1536580492 1539239936 1647467744 1864287232 1998823424 2027652608 2179653632 2332910528 2830450688 2871274496 3029466752 3073160984 3078479872 3294935488 3728574464 3997646848 4055305216 4359307264 4665821056 4993886599 5742548992 6058933504 6146321968 6156959744 6589870976 7457148928 8110610432 9331642112 9987773198 11485097984 12117867008 12292643936 13179741952 14914297856 16221220864 18663284224 19975546396 22970195968 24235734016 24585287872 26359483904 29828595712 32442441728 37326568448 39951092792 45940391936 48471468032 49170575744 52718967808 64884883456 74653136896 79902185584 96942936064 98341151488 105437935616 149306273792 159804371168 193885872128 196682302976 210875871232 298612547584 319608742336 387771744256 393364605952 421751742464 597225095168 639217484672 786729211904 843503484928 1278434969344 1573458423808 2556869938688 3146916847616 5113739877376 6293833695232 10227479754752 20454959509504 40909919019008 81819838038016
• Sum of all divisors σ(n): 180197714188016
• Sum of proper divisors (its aliquot sum) s(n): 98377876150000
• 81819838038016 is an abundant number, because the sum of its proper divisors (98377876150000) is greater than itself. Its abundance is 16558038111984

Bases of 81819838038016

• Binary: 10010100110101000101010011000011100000000000000₂
• Hexadecimal: 0x4A6A2A61C000
• Base-36: T03IJ1IPS

Squares and roots of 81819838038016

• 81819838038016 squared (81819838038016²) is 6694485896567169924261216256
• 81819838038016 cubed (81819838038016³) is 547741751804908175165422515589600925188096
• The square root of 81819838038016 is 9045431.8878656093
• The cube root of 81819838038016 is 43412.9740349553

Scales and comparisons

• 81,819,838,038,016 seconds is equal to 2,601,617 years, 39 weeks, 5 days, 4 hours, 20 minutes, 16 seconds.
• To count from 1 to 81,819,838,038,016 would take you about six million, five hundred four thousand and forty-four 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 81819838038016 cubic inches would be around 3617.7 feet tall.

Recreational maths with 81819838038016

• 81819838038016 backwards is 61083083891818
• 81819838038016 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81819838038016's digits is 64
• More coming soon!