1564

Names of 1564

• Cardinal: 1564 can be written as One thousand, five hundred sixty-four.

Scientific notation

• Scientific notation: 1.564 × 10³

Factors of 1564

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 42

Divisors of 1564

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 17 23 34 46 68 92 391 782 1564
• Sum of all divisors σ(n): 3024
• Sum of proper divisors (its aliquot sum) s(n): 1460
• 1564 is a deficient number, because the sum of its proper divisors (1460) is less than itself. Its deficiency is 104

Bases of 1564

• Binary: 11000011100₂
• Hexadecimal: 0x61C
• Base-36: 17G

Squares and roots of 1564

• 1564 squared (1564²) is 2446096
• 1564 cubed (1564³) is 3825694144
• The square root of 1564 is 39.5474398665
• The cube root of 1564 is 11.6076841673

Scales and comparisons

• 1,564 seconds is equal to 26 minutes, 4 seconds.
• To count from 1 to 1,564 would take you about twenty-six minutes.

  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 1564 cubic inches would be around 1 feet tall.

Recreational maths with 1564

• 1564 backwards is 4651
• The number of decimal digits it has is: 4
• The sum of 1564's digits is 16
• More coming soon!