13121015209

Names of 13121015209

• Cardinal: 13121015209 can be written as Thirteen billion, one hundred twenty-one million, fifteen thousand, two hundred nine.

Scientific notation

• Scientific notation: 1.3121015209 × 10¹⁰

Factors of 13121015209

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 114547

Divisors of 13121015209

• Number of divisors d(n): 3
• Complete list of divisors:
  1 114547 13121015209
• Sum of all divisors σ(n): 13121129757
• Sum of proper divisors (its aliquot sum) s(n): 114548
• 13121015209 is a deficient number, because the sum of its proper divisors (114548) is less than itself. Its deficiency is 13120900661

Bases of 13121015209

• Binary: 1100001110000100101100110110101001₂
• Hexadecimal: 0x30E12CDA9
• Base-36: 60ZWW4P

Squares and roots of 13121015209

• 13121015209 squared (13121015209²) is 172161040114809313681
• 13121015209 cubed (13121015209³) is 2258927625743672110943252774329
• 13121015209 is a perfect square number. Its square root is 114547
• The cube root of 13121015209 is 2358.6082482241

Scales and comparisons

• 13,121,015,209 seconds is equal to 417 years, 10 weeks, 5 days, 14 hours, 26 minutes, 49 seconds.
• To count from 1 to 13,121,015,209 would take you about eight hundred thirty-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 13121015209 cubic inches would be around 196.6 feet tall.

Recreational maths with 13121015209

• 13121015209 backwards is 90251012131
• The number of decimal digits it has is: 11
• The sum of 13121015209's digits is 25
• More coming soon!