13087421

Names of 13087421

• Cardinal: 13087421 can be written as Thirteen million, eighty-seven thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 1.3087421 × 10⁷

Factors of 13087421

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 13087421

Divisors of 13087421

• Number of divisors d(n): 2
• Complete list of divisors:
  1 13087421
• Sum of all divisors σ(n): 13087422
• Sum of proper divisors (its aliquot sum) s(n): 1
• 13087421 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 13087420

Bases of 13087421

• Binary: 110001111011001010111101₂
• Hexadecimal: 0xC7B2BD
• Base-36: 7SIBH

Squares and roots of 13087421

• 13087421 squared (13087421²) is 171280588431241
• 13087421 cubed (13087421³) is 2241621169927380519461
• The square root of 13087421 is 3617.6540741205
• The cube root of 13087421 is 235.6593584553

Scales and comparisons

• 13,087,421 seconds is equal to 21 weeks, 4 days, 11 hours, 23 minutes, 41 seconds.
• To count from 1 to 13,087,421 would take you about thirty-two 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 13087421 cubic inches would be around 19.6 feet tall.

Recreational maths with 13087421

• 13087421 backwards is 12478031
• The number of decimal digits it has is: 8
• The sum of 13087421's digits is 26
• More coming soon!