13012129520

Names of 13012129520

• Cardinal: 13012129520 can be written as Thirteen billion, twelve million, one hundred twenty-nine thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.301212952 × 10¹⁰

Factors of 13012129520

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 12511683

Divisors of 13012129520

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 12511663 25023326 50046652 62558315 100093304 125116630 162651619 200186608 250233260 325303238 500466520 650606476 813258095 1000933040 1301212952 1626516190 2602425904 3253032380 6506064760 13012129520
• Sum of all divisors σ(n): 32580373056
• Sum of proper divisors (its aliquot sum) s(n): 19568243536
• 13012129520 is an abundant number, because the sum of its proper divisors (19568243536) is greater than itself. Its abundance is 6556114016

Bases of 13012129520

• Binary: 1100000111100101010101011011110000₂
• Hexadecimal: 0x3079556F0
• Base-36: 5Z733E8

Squares and roots of 13012129520

• 13012129520 squared (13012129520²) is 169315514645255430400
• 13012129520 cubed (13012129520³) is 2203155406309520513848145408000
• The square root of 13012129520 is 114070.7215721895
• The cube root of 13012129520 is 2352.0657568347

Scales and comparisons

• 13,012,129,520 seconds is equal to 413 years, 38 weeks, 5 days, 8 hours, 25 minutes, 20 seconds.
• To count from 1 to 13,012,129,520 would take you about eight hundred twenty-seven 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 13012129520 cubic inches would be around 196 feet tall.

Recreational maths with 13012129520

• 13012129520 backwards is 02592121031
• 13012129520 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13012129520's digits is 26
• More coming soon!