79958138507721

Names of 79958138507721

• Cardinal: 79958138507721 can be written as Seventy-nine trillion, nine hundred fifty-eight billion, one hundred thirty-eight million, five hundred seven thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 7.9958138507721 × 10¹³

Factors of 79958138507721

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 434558

Divisors of 79958138507721

• Number of divisors d(n): 40
• Complete list of divisors:
  1 3 9 27 81 193 579 1737 5211 12113 15633 36339 109017 327051 422249 981153 1266747 2337809 3800241 7013427 11400723 21040281 34202169 63120843 81494057 189362529 244482171 733446513 2200339539 5114702137 6601018617 15344106411 46032319233 138096957699 414290873097 987137512441 2961412537323 8884237611969 26652712835907 79958138507721
• Sum of all divisors σ(n): 120072714201000
• Sum of proper divisors (its aliquot sum) s(n): 40114575693279
• 79958138507721 is a deficient number, because the sum of its proper divisors (40114575693279) is less than itself. Its deficiency is 39843562814442

Bases of 79958138507721

• Binary: 10010001011100010110100011100010101000111001001₂
• Hexadecimal: 0x48B8B47151C9
• Base-36: SCC9F7JK9

Squares and roots of 79958138507721

• 79958138507721 squared (79958138507721²) is 6393303913619895824776613841
• 79958138507721 cubed (79958138507721³) is 511196679847174366230119436722795213966361
• The square root of 79958138507721 is 8941931.4752306731
• The cube root of 79958138507721 is 43081.1768350925

Scales and comparisons

• 79,958,138,507,721 seconds is equal to 2,542,421 years, 24 weeks, 5 days, 21 hours, 55 minutes, 21 seconds.
• To count from 1 to 79,958,138,507,721 would take you about six million, three hundred fifty-six thousand and fifty-three 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 79958138507721 cubic inches would be around 3590.1 feet tall.

Recreational maths with 79958138507721

• 79958138507721 backwards is 12770583185997
• The number of decimal digits it has is: 14
• The sum of 79958138507721's digits is 72
• More coming soon!