1388561

Names of 1388561

• Cardinal: 1388561 can be written as One million, three hundred eighty-eight thousand, five hundred sixty-one.

Scientific notation

• Scientific notation: 1.388561 × 10⁶

Factors of 1388561

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4830

Divisors of 1388561

• Number of divisors d(n): 4
• Complete list of divisors:
  1 307 4523 1388561
• Sum of all divisors σ(n): 1393392
• Sum of proper divisors (its aliquot sum) s(n): 4831
• 1388561 is a deficient number, because the sum of its proper divisors (4831) is less than itself. Its deficiency is 1383730

Bases of 1388561

• Binary: 101010011000000010001₂
• Hexadecimal: 0x153011
• Base-36: TRF5

Squares and roots of 1388561

• 1388561 squared (1388561²) is 1928101650721
• 1388561 cubed (1388561³) is 2677286756226802481
• The square root of 1388561 is 1178.3721822921
• The cube root of 1388561 is 111.5633776707

Scales and comparisons

• 1,388,561 seconds is equal to 2 weeks, 2 days, 1 hour, 42 minutes, 41 seconds.
• To count from 1 to 1,388,561 would take you about three 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 1388561 cubic inches would be around 9.3 feet tall.

Recreational maths with 1388561

• 1388561 backwards is 1658831
• The number of decimal digits it has is: 7
• The sum of 1388561's digits is 32
• More coming soon!