71531128305

Names of 71531128305

• Cardinal: 71531128305 can be written as Seventy-one billion, five hundred thirty-one million, one hundred twenty-eight thousand, three hundred five.

Scientific notation

• Scientific notation: 7.1531128305 × 10¹⁰

Factors of 71531128305

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2495445

Divisors of 71531128305

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 7 9 13 15 21 35 39 45 49 63 65 91 105 117 147 195 245 273 315 441 455 585 637 735 819 1365 1911 2205 3185 4095 5733 9555 28665 2495417 7486251 12477085 17467919 22458753 32440421 37431255 52403757 87339595 97321263 112293765 122275433 157211271 162202105 227082947 262018785 291963789 366826299 486606315 611377165 681248841 786056355 1100478897 1135414735 1459818945 1589580629 1834131495 2043746523 3406244205 4768741887 5502394485 7947903145 10218732615 14306225661 23843709435 71531128305
• Sum of all divisors σ(n): 155324797992
• Sum of proper divisors (its aliquot sum) s(n): 83793669687
• 71531128305 is an abundant number, because the sum of its proper divisors (83793669687) is greater than itself. Its abundance is 12262541382

Bases of 71531128305

• Binary: 1000010100111100101100110010111110001₂
• Hexadecimal: 0x10A79665F1
• Base-36: WUZSBU9

Squares and roots of 71531128305

• 71531128305 squared (71531128305²) is 5116702316586372173025
• 71531128305 cubed (71531128305³) is 366003489906230517523132934972625
• The square root of 71531128305 is 267453.0394387021
• The cube root of 71531128305 is 4151.1174869373

Scales and comparisons

• 71,531,128,305 seconds is equal to 2,274 years, 24 weeks, 2 days, 13 hours, 51 minutes, 45 seconds.
• To count from 1 to 71,531,128,305 would take you about four thousand, five hundred forty-eight 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 71531128305 cubic inches would be around 345.9 feet tall.

Recreational maths with 71531128305

• 71531128305 backwards is 50382113517
• The number of decimal digits it has is: 11
• The sum of 71531128305's digits is 36
• More coming soon!