12390913

Names of 12390913

• Cardinal: 12390913 can be written as Twelve million, three hundred ninety thousand, nine hundred thirteen.

Scientific notation

• Scientific notation: 1.2390913 × 10⁷

Factors of 12390913

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 2487

Divisors of 12390913

• Number of divisors d(n): 8
• Complete list of divisors:
  1 67 79 2341 5293 156847 184939 12390913
• Sum of all divisors σ(n): 12740480
• Sum of proper divisors (its aliquot sum) s(n): 349567
• 12390913 is a deficient number, because the sum of its proper divisors (349567) is less than itself. Its deficiency is 12041346

Bases of 12390913

• Binary: 101111010001001000000001₂
• Hexadecimal: 0xBD1201
• Base-36: 7DKW1

Squares and roots of 12390913

• 12390913 squared (12390913²) is 153534724973569
• 12390913 cubed (12390913³) is 1902435419626420778497
• The square root of 12390913 is 3520.0728685639
• The cube root of 12390913 is 231.4023521983

Scales and comparisons

• 12,390,913 seconds is equal to 20 weeks, 3 days, 9 hours, 55 minutes, 13 seconds.
• To count from 1 to 12,390,913 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 12390913 cubic inches would be around 19.3 feet tall.

Recreational maths with 12390913

• 12390913 backwards is 31909321
• The number of decimal digits it has is: 8
• The sum of 12390913's digits is 28
• More coming soon!