71728293728

Names of 71728293728

• Cardinal: 71728293728 can be written as Seventy-one billion, seven hundred twenty-eight million, two hundred ninety-three thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 7.1728293728 × 10¹⁰

Factors of 71728293728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 417572

Divisors of 71728293728

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 59 91 104 112 118 182 208 224 236 364 413 416 472 728 767 826 944 1456 1534 1652 1888 2912 3068 3304 5369 6136 6608 10738 12272 13216 21476 24544 42952 85904 171808 417491 834982 1669964 2922437 3339928 5427383 5844874 6679856 10854766 11689748 13359712 21709532 23379496 24631969 37991681 43419064 46758992 49263938 75983362 86838128 93517984 98527876 151966724 172423783 173676256 197055752 303933448 320215597 344847566 394111504 607866896 640431194 689695132 788223008 1215733792 1280862388 1379390264 2241509179 2561724776 2758780528 4483018358 5123449552 5517561056 8966036716 10246899104 17932073432 35864146864 71728293728
• Sum of all divisors σ(n): 176749413120
• Sum of proper divisors (its aliquot sum) s(n): 105021119392
• 71728293728 is an abundant number, because the sum of its proper divisors (105021119392) is greater than itself. Its abundance is 33292825664

Bases of 71728293728

• Binary: 1000010110011010101101110011101100000₂
• Hexadecimal: 0x10B356E760
• Base-36: WY969NK

Squares and roots of 71728293728

• 71728293728 squared (71728293728²) is 5144948121130244137984
• 71728293728 cubed (71728293728³) is 369038350047751874873666513764352
• The square root of 71728293728 is 267821.3840006059
• The cube root of 71728293728 is 4154.9279771729

Scales and comparisons

• 71,728,293,728 seconds is equal to 2,280 years, 38 weeks, 2 days, 14 hours, 2 minutes, 8 seconds.
• To count from 1 to 71,728,293,728 would take you about four thousand, five hundred sixty-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 71728293728 cubic inches would be around 346.2 feet tall.

Recreational maths with 71728293728

• 71728293728 backwards is 82739282717
• 71728293728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 71728293728's digits is 56
• More coming soon!