13138489

Names of 13138489

• Cardinal: 13138489 can be written as Thirteen million, one hundred thirty-eight thousand, four hundred eighty-nine.

Scientific notation

• Scientific notation: 1.3138489 × 10⁷

Factors of 13138489

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 144399

Divisors of 13138489

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 13 91 144379 1010653 1876927 13138489
• Sum of all divisors σ(n): 16170560
• Sum of proper divisors (its aliquot sum) s(n): 3032071
• 13138489 is a deficient number, because the sum of its proper divisors (3032071) is less than itself. Its deficiency is 10106418

Bases of 13138489

• Binary: 110010000111101000111001₂
• Hexadecimal: 0xC87A39
• Base-36: 7TLQ1

Squares and roots of 13138489

• 13138489 squared (13138489²) is 172619893203121
• 13138489 cubed (13138489³) is 2267964568030380024169
• The square root of 13138489 is 3624.7053673367
• The cube root of 13138489 is 235.9654802043

Scales and comparisons

• 13,138,489 seconds is equal to 21 weeks, 5 days, 1 hour, 34 minutes, 49 seconds.
• To count from 1 to 13,138,489 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 13138489 cubic inches would be around 19.7 feet tall.

Recreational maths with 13138489

• 13138489 backwards is 98483131
• The number of decimal digits it has is: 8
• The sum of 13138489's digits is 37
• More coming soon!