78821689472964

Names of 78821689472964

• Cardinal: 78821689472964 can be written as Seventy-eight trillion, eight hundred twenty-one billion, six hundred eighty-nine million, four hundred seventy-two thousand, nine hundred sixty-four.

Scientific notation

• Scientific notation: 7.8821689472964 × 10¹³

Factors of 78821689472964

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 493236

Divisors of 78821689472964

• Number of divisors d(n): 45
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 493231 986462 1479693 1972924 2959386 4439079 5918772 8878158 13317237 17756316 26634474 39951711 53268948 79903422 159806844 243276819361 486553638722 729830458083 973107277444 1459660916166 2189491374249 2919321832332 4378982748498 6568474122747 8757965496996 13136948245494 19705422368241 26273896490988 39410844736482 78821689472964
• Sum of all divisors σ(n): 206055883766271
• Sum of proper divisors (its aliquot sum) s(n): 127234194293307
• 78821689472964 is an abundant number, because the sum of its proper divisors (127234194293307) is greater than itself. Its abundance is 48412504820343

Bases of 78821689472964

• Binary: 10001111011000000011010110011010011011111000100₂
• Hexadecimal: 0x47B01ACD37C4
• Base-36: RXU6MSO90

Squares and roots of 78821689472964

• 78821689472964 squared (78821689472964²) is 6212858731372363856086945296
• 78821689472964 cubed (78821689472964³) is 489708021663625524084124657911630938977344
• 78821689472964 is a perfect square number. Its square root is 8878158
• The cube root of 78821689472964 is 42876.0971657505

Scales and comparisons

• 78,821,689,472,964 seconds is equal to 2,506,285 years, 47 weeks, 3 days, 14 hours, 29 minutes, 24 seconds.
• To count from 1 to 78,821,689,472,964 would take you about six million, two hundred sixty-five thousand, seven hundred fourteen 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 78821689472964 cubic inches would be around 3573 feet tall.

Recreational maths with 78821689472964

• 78821689472964 backwards is 46927498612887
• 78821689472964 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 78821689472964's digits is 81
• More coming soon!