18407842

Names of 18407842

• Cardinal: 18407842 can be written as Eighteen million, four hundred seven thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 1.8407842 × 10⁷

Factors of 18407842

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 10724

Divisors of 18407842

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 941 1882 9781 19562 9203921 18407842
• Sum of all divisors σ(n): 27643932
• Sum of proper divisors (its aliquot sum) s(n): 9236090
• 18407842 is a deficient number, because the sum of its proper divisors (9236090) is less than itself. Its deficiency is 9171752

Bases of 18407842

• Binary: 1000110001110000110100010₂
• Hexadecimal: 0x118E1A2
• Base-36: AYJKY

Squares and roots of 18407842

• 18407842 squared (18407842²) is 338848647096964
• 18407842 cubed (18407842³) is 6237472357674671991688
• The square root of 18407842 is 4290.4361083693
• The cube root of 18407842 is 264.0387244235

Scales and comparisons

• 18,407,842 seconds is equal to 30 weeks, 3 days, 1 hour, 17 minutes, 22 seconds.
• To count from 1 to 18,407,842 would take you about forty-five 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 18407842 cubic inches would be around 22 feet tall.

Recreational maths with 18407842

• 18407842 backwards is 24870481
• The number of decimal digits it has is: 8
• The sum of 18407842's digits is 34
• More coming soon!