80655442728

Names of 80655442728

• Cardinal: 80655442728 can be written as Eighty billion, six hundred fifty-five million, four hundred forty-two thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 8.0655442728 × 10¹⁰

Factors of 80655442728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 21923

Divisors of 80655442728

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 21911 43822 65733 87644 131466 153377 175288 262932 306754 460131 525864 613508 920262 1227016 1840524 3681048 480091921 960183842 1440275763 1920367684 2880551526 3360643447 3840735368 5761103052 6721286894 10081930341 11522206104 13442573788 20163860682 26885147576 40327721364 80655442728
• Sum of all divisors σ(n): 230454639840
• Sum of proper divisors (its aliquot sum) s(n): 149799197112
• 80655442728 is an abundant number, because the sum of its proper divisors (149799197112) is greater than itself. Its abundance is 69143754384

Bases of 80655442728

• Binary: 1001011000111011100000110001100101000₂
• Hexadecimal: 0x12C7706328
• Base-36: 111W61WO

Squares and roots of 80655442728

• 80655442728 squared (80655442728²) is 6505300441649688081984
• 80655442728 cubed (80655442728³) is 524687887199909522935524680612352
• The square root of 80655442728 is 283999.0188856293
• The cube root of 80655442728 is 4320.6049594323

Scales and comparisons

• 80,655,442,728 seconds is equal to 2,564 years, 30 weeks, 6 days, 1 hour, 38 minutes, 48 seconds.
• To count from 1 to 80,655,442,728 would take you about five thousand, one hundred twenty-nine 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 80655442728 cubic inches would be around 360.1 feet tall.

Recreational maths with 80655442728

• 80655442728 backwards is 82724455608
• The number of decimal digits it has is: 11
• The sum of 80655442728's digits is 51
• More coming soon!