12909421

Names of 12909421

• Cardinal: 12909421 can be written as Twelve million, nine hundred nine thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 1.2909421 × 10⁷

Factors of 12909421

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 6851

Divisors of 12909421

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 281 1967 6563 45941 1844203 12909421
• Sum of all divisors σ(n): 14808384
• Sum of proper divisors (its aliquot sum) s(n): 1898963
• 12909421 is a deficient number, because the sum of its proper divisors (1898963) is less than itself. Its deficiency is 11010458

Bases of 12909421

• Binary: 110001001111101101101101₂
• Hexadecimal: 0xC4FB6D
• Base-36: 7OOZ1

Squares and roots of 12909421

• 12909421 squared (12909421²) is 166653150555241
• 12909421 cubed (12909421³) is 2151395681493989825461
• The square root of 12909421 is 3592.9682714993
• The cube root of 12909421 is 234.5860889613

Scales and comparisons

• 12,909,421 seconds is equal to 21 weeks, 2 days, 9 hours, 57 minutes, 1 second.
• To count from 1 to 12,909,421 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 12909421 cubic inches would be around 19.5 feet tall.

Recreational maths with 12909421

• 12909421 backwards is 12490921
• The number of decimal digits it has is: 8
• The sum of 12909421's digits is 28
• More coming soon!