81327230271

Names of 81327230271

• Cardinal: 81327230271 can be written as Eighty-one billion, three hundred twenty-seven million, two hundred thirty thousand, two hundred seventy-one.

Scientific notation

• Scientific notation: 8.1327230271 × 10¹⁰

Factors of 81327230271

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2363

Divisors of 81327230271

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 21 31 63 93 217 279 651 961 1093 1229 1953 2883 3279 3687 6727 7651 8603 8649 9837 11061 20181 22953 25809 33883 38099 60543 68859 77427 101649 114297 237181 266693 304947 342891 711543 800079 1050373 1181069 1343297 2134629 2400237 3151119 3543207 4029891 7352611 8267483 9403079 9453357 10629621 12089673 22057833 24802449 28209237 41642207 66173499 74407347 84627711 124926621 291495449 374779863 874486347 1290908417 2623459041 3872725251 9036358919 11618175753 27109076757 81327230271
• Sum of all divisors σ(n): 138964868640
• Sum of proper divisors (its aliquot sum) s(n): 57637638369
• 81327230271 is a deficient number, because the sum of its proper divisors (57637638369) is less than itself. Its deficiency is 23689591902

Bases of 81327230271

• Binary: 1001011101111011110110000110100111111₂
• Hexadecimal: 0x12EF7B0D3F
• Base-36: 11D04SHR

Squares and roots of 81327230271

• 81327230271 squared (81327230271²) is 6614118383552258733441
• 81327230271 cubed (81327230271³) is 537907928818808844976727015192511
• The square root of 81327230271 is 285179.2949549459
• The cube root of 81327230271 is 4332.5673973781

Scales and comparisons

• 81,327,230,271 seconds is equal to 2,585 years, 49 weeks, 4 days, 9 hours, 17 minutes, 51 seconds.
• To count from 1 to 81,327,230,271 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 81327230271 cubic inches would be around 361 feet tall.

Recreational maths with 81327230271

• 81327230271 backwards is 17203272318
• The number of decimal digits it has is: 11
• The sum of 81327230271's digits is 36
• More coming soon!