12401390

Names of 12401390

• Cardinal: 12401390 can be written as Twelve million, four hundred one thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.240139 × 10⁷

Factors of 12401390

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1240146

Divisors of 12401390

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 1240139 2480278 6200695 12401390
• Sum of all divisors σ(n): 22322520
• Sum of proper divisors (its aliquot sum) s(n): 9921130
• 12401390 is a deficient number, because the sum of its proper divisors (9921130) is less than itself. Its deficiency is 2480260

Bases of 12401390

• Binary: 101111010011101011101110₂
• Hexadecimal: 0xBD3AEE
• Base-36: 7DSZ2

Squares and roots of 12401390

• 12401390 squared (12401390²) is 153794473932100
• 12401390 cubed (12401390³) is 1907265251076805619000
• The square root of 12401390 is 3521.5607335385
• The cube root of 12401390 is 231.4675537283

Scales and comparisons

• 12,401,390 seconds is equal to 20 weeks, 3 days, 12 hours, 49 minutes, 50 seconds.
• To count from 1 to 12,401,390 would take you about thirty 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 12401390 cubic inches would be around 19.3 feet tall.

Recreational maths with 12401390

• 12401390 backwards is 09310421
• The number of decimal digits it has is: 8
• The sum of 12401390's digits is 20
• More coming soon!