12388931

Names of 12388931

• Cardinal: 12388931 can be written as Twelve million, three hundred eighty-eight thousand, nine hundred thirty-one.

Scientific notation

• Scientific notation: 1.2388931 × 10⁷

Factors of 12388931

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4849

Divisors of 12388931

• Number of divisors d(n): 8
• Complete list of divisors:
  1 19 139 2641 4691 89129 652049 12388931
• Sum of all divisors σ(n): 13137600
• Sum of proper divisors (its aliquot sum) s(n): 748669
• 12388931 is a deficient number, because the sum of its proper divisors (748669) is less than itself. Its deficiency is 11640262

Bases of 12388931

• Binary: 101111010000101001000011₂
• Hexadecimal: 0xBD0A43
• Base-36: 7DJCZ

Squares and roots of 12388931

• 12388931 squared (12388931²) is 153485611322761
• 12388931 cubed (12388931³) is 1901522648170504758491
• The square root of 12388931 is 3519.7913290421
• The cube root of 12388931 is 231.3900134811

Scales and comparisons

• 12,388,931 seconds is equal to 20 weeks, 3 days, 9 hours, 22 minutes, 11 seconds.
• To count from 1 to 12,388,931 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 12388931 cubic inches would be around 19.3 feet tall.

Recreational maths with 12388931

• 12388931 backwards is 13988321
• The number of decimal digits it has is: 8
• The sum of 12388931's digits is 35
• More coming soon!