81322827264

Names of 81322827264

• Cardinal: 81322827264 can be written as Eighty-one billion, three hundred twenty-two million, eight hundred twenty-seven thousand, two hundred sixty-four.

Scientific notation

• Scientific notation: 8.1322827264 × 10¹⁰

Factors of 81322827264

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 360179

Divisors of 81322827264

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 98 112 126 128 144 147 168 192 196 224 252 256 288 294 336 384 392 441 448 504 512 576 588 672 768 784 882 896 1008 1152 1176 1344 1536 1568 1764 1792 2016 2304 2352 2688 3136 3528 3584 4032 4608 4704 5376 6272 7056 8064 9408 10752 12544 14112 16128 18816 25088 28224 32256 37632 56448 75264 112896 225792 360167 720334 1080501 1440668 2161002 2521169 2881336 3241503 4322004 5042338 5762672 6483006 7563507 8644008 10084676 11525344 12966012 15127014 17288016 17648183 20169352 22690521 23050688 25932024 30254028 34576032 35296366 40338704 45381042 46101376 51864048 52944549 60508056 69152064 70592732 80677408 90762084 92202752 103728096 105889098 121016112 138304128 141185464 158833647 161354816 181524168 184405504 207456192 211778196 242032224 276608256 282370928 317667294 322709632 363048336 414912384 423556392 484064448 553216512 564741856 635334588 645419264 726096672 829824768 847112784 968128896 1129483712 1270669176 1290838528 1452193344 1659649536 1694225568 1936257792 2258967424 2541338352 2904386688 3388451136 3872515584 4517934848 5082676704 5808773376 6776902272 9035869696 10165353408 11617546752 13553804544 20330706816 27107609088 40661413632 81322827264
• Sum of all divisors σ(n): 273022831224
• Sum of proper divisors (its aliquot sum) s(n): 191700003960
• 81322827264 is an abundant number, because the sum of its proper divisors (191700003960) is greater than itself. Its abundance is 110377176696

Bases of 81322827264

• Binary: 1001011101111001101111101111000000000₂
• Hexadecimal: 0x12EF37DE00
• Base-36: 11CXIF40

Squares and roots of 81322827264

• 81322827264 squared (81322827264²) is 6613402234210381725696
• 81322827264 cubed (81322827264³) is 537820567520042544514278038175744
• The square root of 81322827264 is 285171.5751332871
• The cube root of 81322827264 is 4332.4892084421

Scales and comparisons

• 81,322,827,264 seconds is equal to 2,585 years, 42 weeks, 2 days, 10 hours, 14 minutes, 24 seconds.
• To count from 1 to 81,322,827,264 would take you about five thousand, one hundred seventy-one 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 81322827264 cubic inches would be around 361 feet tall.

Recreational maths with 81322827264

• 81322827264 backwards is 46272822318
• The number of decimal digits it has is: 11
• The sum of 81322827264's digits is 45
• More coming soon!