30891521080

Names of 30891521080

• Cardinal: 30891521080 can be written as Thirty billion, eight hundred ninety-one million, five hundred twenty-one thousand and eighty.

Scientific notation

• Scientific notation: 3.089152108 × 10¹⁰

Factors of 30891521080

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3558976

Divisors of 30891521080

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 28 31 35 40 56 62 70 124 140 155 217 248 280 310 434 620 868 1085 1240 1736 2170 4340 8680 3558931 7117862 14235724 17794655 24912517 28471448 35589310 49825034 71178620 99650068 110326861 124562585 142357240 199300136 220653722 249125170 441307444 498250340 551634305 772288027 882614888 996500680 1103268610 1544576054 2206537220 3089152108 3861440135 4413074440 6178304216 7722880270 15445760540 30891521080
• Sum of all divisors σ(n): 81997793280
• Sum of proper divisors (its aliquot sum) s(n): 51106272200
• 30891521080 is an abundant number, because the sum of its proper divisors (51106272200) is greater than itself. Its abundance is 20214751120

Bases of 30891521080

• Binary: 11100110001010001110011010000111000₂
• Hexadecimal: 0x731473438
• Base-36: E6W0I7S

Squares and roots of 30891521080

• 30891521080 squared (30891521080²) is 954286074636084366400
• 30891521080 cubed (30891521080³) is 29479348390971053533304043712000
• The square root of 30891521080 is 175759.8392124891
• The cube root of 30891521080 is 3137.7121379079

Scales and comparisons

• 30,891,521,080 seconds is equal to 982 years, 13 weeks, 1 day, 18 hours, 4 minutes, 40 seconds.
• To count from 1 to 30,891,521,080 would take you about one thousand, nine hundred sixty-four 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 30891521080 cubic inches would be around 261.5 feet tall.

Recreational maths with 30891521080

• 30891521080 backwards is 08012519803
• The number of decimal digits it has is: 11
• The sum of 30891521080's digits is 37
• More coming soon!