72128970129023999

Names of 72128970129023999

• Cardinal: 72128970129023999 can be written as Seventy-two quadrillion, one hundred twenty-eight trillion, nine hundred seventy billion, one hundred twenty-nine million, twenty-three thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 7.2128970129023999 × 10¹⁶

Factors of 72128970129023999

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 52533845688936

Divisors of 72128970129023999

• Number of divisors d(n): 4
• Complete list of divisors:
  1 1373 52533845687563 72128970129023999
• Sum of all divisors σ(n): 72181503974712936
• Sum of proper divisors (its aliquot sum) s(n): 52533845688937
• 72128970129023999 is a deficient number, because the sum of its proper divisors (52533845688937) is less than itself. Its deficiency is 72076436283335062

Bases of 72128970129023999

• Binary: 100000000010000001110101010001010100011100010001111111111₂
• Hexadecimal: 0x10040EA8A8E23FF
• Base-36: JQ7L3FNZZZZ

Squares and roots of 72128970129023999

• 72128970129023999 squared (72128970129023999²) is 5202588331873636322949252317952001
• 72128970129023999 cubed (72128970129023999³) is 375257338383322309857992653022558349691156659071999
• The square root of 72128970129023999 is 268568371.4234124015
• The cube root of 72128970129023999 is 416265.0133690223

Scales and comparisons

• 72,128,970,129,023,999 seconds is equal to 2,293,478,140 years, 28 weeks, 3 days, 23 hours, 59 minutes, 59 seconds.
• To count from 1 to 72,128,970,129,023,999 would take you about six billion, eight hundred eighty million, four hundred thirty-four thousand, four hundred twenty-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 72128970129023999 cubic inches would be around 34688.8 feet tall.

Recreational maths with 72128970129023999

• 72128970129023999 backwards is 99932092107982127
• The number of decimal digits it has is: 17
• The sum of 72128970129023999's digits is 80
• More coming soon!