12978137

Names of 12978137

• Cardinal: 12978137 can be written as Twelve million, nine hundred seventy-eight thousand, one hundred thirty-seven.

Scientific notation

• Scientific notation: 1.2978137 × 10⁷

Factors of 12978137

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 121398

Divisors of 12978137

• Number of divisors d(n): 4
• Complete list of divisors:
  1 107 121291 12978137
• Sum of all divisors σ(n): 13099536
• Sum of proper divisors (its aliquot sum) s(n): 121399
• 12978137 is a deficient number, because the sum of its proper divisors (121399) is less than itself. Its deficiency is 12856738

Bases of 12978137

• Binary: 110001100000011111011001₂
• Hexadecimal: 0xC607D9
• Base-36: 7Q5ZT

Squares and roots of 12978137

• 12978137 squared (12978137²) is 168432039990769
• 12978137 cubed (12978137³) is 2185934090189678817353
• The square root of 12978137 is 3602.5181470743
• The cube root of 12978137 is 235.0015813987

Scales and comparisons

• 12,978,137 seconds is equal to 21 weeks, 3 days, 5 hours, 2 minutes, 17 seconds.
• To count from 1 to 12,978,137 would take you about thirty-two weeks!

  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 12978137 cubic inches would be around 19.6 feet tall.

Recreational maths with 12978137

• 12978137 backwards is 73187921
• The number of decimal digits it has is: 8
• The sum of 12978137's digits is 38
• More coming soon!