12890491

Names of 12890491

• Cardinal: 12890491 can be written as Twelve million, eight hundred ninety thousand, four hundred ninety-one.

Scientific notation

• Scientific notation: 1.2890491 × 10⁷

Factors of 12890491

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 12890491

Divisors of 12890491

• Number of divisors d(n): 2
• Complete list of divisors:
  1 12890491
• Sum of all divisors σ(n): 12890492
• Sum of proper divisors (its aliquot sum) s(n): 1
• 12890491 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 12890490

Bases of 12890491

• Binary: 110001001011000101111011₂
• Hexadecimal: 0xC4B17B
• Base-36: 7OAD7

Squares and roots of 12890491

• 12890491 squared (12890491²) is 166164758221081
• 12890491 cubed (12890491³) is 2141945320366020640771
• The square root of 12890491 is 3590.3329929131
• The cube root of 12890491 is 234.4713694603

Scales and comparisons

• 12,890,491 seconds is equal to 21 weeks, 2 days, 4 hours, 41 minutes, 31 seconds.
• To count from 1 to 12,890,491 would take you about thirty-one 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 12890491 cubic inches would be around 19.5 feet tall.

Recreational maths with 12890491

• 12890491 backwards is 19409821
• The number of decimal digits it has is: 8
• The sum of 12890491's digits is 34
• More coming soon!