81716638495608

Names of 81716638495608

• Cardinal: 81716638495608 can be written as Eighty-one trillion, seven hundred sixteen billion, six hundred thirty-eight million, four hundred ninety-five thousand, six hundred eight.

Scientific notation

• Scientific notation: 8.1716638495608 × 10¹³

Factors of 81716638495608

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 370

Divisors of 81716638495608

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 23 24 27 36 46 54 59 69 72 92 108 118 138 177 184 207 216 236 276 283 354 414 472 531 552 566 621 708 828 849 1062 1132 1242 1357 1416 1593 1656 1698 2124 2264 2484 2547 2714 3186 3396 3481 4071 4248 4968 5094 5428 6372 6509 6792 6962 7641 8142 10188 10443 10856 12213 12744 13018 13924 15282 16284 16697 19527 20376 20886 24426 26036 27848 30564 31329 32568 33394 36639 39054 41772 48852 50091 52072 58581 61128 62658 66788 73278 78108 80063 80089 83544 93987 97704 100182 117162 125316 133576 146556 150273 156216 160126 160178 175743 187974 200364 205379 234324 240189 240267 250632 293112 300546 320252 320356 351486 375948 384031 400728 410758 450819 468648 480378 480534 601092 616137 640504 640712 702972 720567 720801 751896 768062 821516 901638 960756 961068 985123 1152093 1202184 1232274 1405944 1441134 1441602 1536124 1643032 1803276 1842047 1848411 1921512 1922136 1970246 2161701 2162403 2304186 2464548 2882268 2883204 2955369 3072248 3456279 3606552 3684094 3696822 3940492 4323402 4324806 4608372 4723717 4725251 4929096 5526141 5545233 5764536 5766408 5910738 6912558 7368188 7393644 7880984 8646804 8649612 8866107 9216744 9447434 9450502 10368837 11052282 11090466 11821476 13825116 14171151 14175753 14736376 14787288 16578423 17293608 17299224 17732214 18894868 18901004 20737674 22104564 22180932 22657829 23642952 26598321 27650232 28342302 28351506 33156846 35464428 37789736 37802008 41475348 42513453 42527259 44209128 44361864 45315658 49735269 53196642 56684604 56703012 58122257 66313692 67973487 70928856 82950696 85026906 85054518 90631316 99470538 106393284 108680773 113369208 113406024 116244514 127540359 127581777 132627384 135946974 170053812 170109036 174366771 181262632 198941076 203920461 212786568 217361546 232489028 255080718 255163554 271893948 278789809 326042319 340107624 340218072 348733542 397882152 407840922 434723092 464978056 510161436 510327108 523100313 543787896 557579618 611761383 652084638 697467084 815681844 836369427 869446184 978126957 1020322872 1020654216 1046200626 1115159236 1223522766 1304169276 1336811911 1394934168 1569300939 1631363688 1672738854 1956253914 2092401252 2230318472 2447045532 2509108281 2608338552 2673623822 2934380871 3138601878 3345477708 3912507828 4010435733 4184802504 4894091064 5018216562 5347247644 5868761742 6277203756 6412165607 6690955416 7527324843 7825015656 8020871466 10036433124 10694495288 11737523484 12031307199 12554407512 12824331214 15054649686 16041742932 16448598731 19236496821 20072866248 23475046968 24062614398 25648662428 30109299372 32083485864 32897197462 36093921597 38472993642 48125228796 49345796193 51297324856 57709490463 60218598744 65794394924 72187843194 76945987284 96250457592 98691592386 115418980926 131588789848 144375686388 148037388579 153891974568 173128471389 197383184772 230837961852 288751372776 296074777158 346256942778 378317770813 394766369544 444112165737 461675923704 592149554316 692513885556 756635541626 888224331474 1134953312439 1184299108632 1385027771112 1513271083252 1776448662948 2269906624878 3026542166504 3404859937317 3552897325896 4539813249756 6809719874634 9079626499512 10214579811951 13619439749268 20429159623902 27238879498536 40858319247804 81716638495608
• Sum of all divisors σ(n): 241797991104000
• Sum of proper divisors (its aliquot sum) s(n): 160081352608392
• 81716638495608 is an abundant number, because the sum of its proper divisors (160081352608392) is greater than itself. Its abundance is 78364714112784

Bases of 81716638495608

• Binary: 10010100101001000100011001101011011001101111000₂
• Hexadecimal: 0x4A522335B378
• Base-36: SYS3SP660

Squares and roots of 81716638495608

• 81716638495608 squared (81716638495608²) is 6677609007021883297435289664
• 81716638495608 cubed (81716638495608³) is 545671761241823140246867431173538671795712
• The square root of 81716638495608 is 9039725.5763440075
• The cube root of 81716638495608 is 43394.7140623465

Scales and comparisons

• 81,716,638,495,608 seconds is equal to 2,598,336 years, 17 weeks, 4 days, 46 minutes, 48 seconds.
• To count from 1 to 81,716,638,495,608 would take you about six million, four hundred ninety-five thousand, eight hundred forty 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 81716638495608 cubic inches would be around 3616.2 feet tall.

Recreational maths with 81716638495608

• 81716638495608 backwards is 80659483661718
• 81716638495608 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81716638495608's digits is 72
• More coming soon!