75145

Names of 75145

• Cardinal: 75145 can be written as Seventy-five thousand, one hundred forty-five.

Scientific notation

• Scientific notation: 7.5145 × 10⁴

Factors of 75145

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 144

Divisors of 75145

• Number of divisors d(n): 16
• Complete list of divisors:
  1 5 7 19 35 95 113 133 565 665 791 2147 3955 10735 15029 75145
• Sum of all divisors σ(n): 109440
• Sum of proper divisors (its aliquot sum) s(n): 34295
• 75145 is a deficient number, because the sum of its proper divisors (34295) is less than itself. Its deficiency is 40850

Bases of 75145

• Binary: 10010010110001001₂
• Hexadecimal: 0x12589
• Base-36: 1LZD

Squares and roots of 75145

• 75145 squared (75145²) is 5646771025
• 75145 cubed (75145³) is 424326608673625
• The square root of 75145 is 274.1258834915
• The cube root of 75145 is 42.1987930443

Scales and comparisons

• 75,145 seconds is equal to 20 hours, 52 minutes, 25 seconds.
• To count from 1 to 75,145 would take you about twenty hours.

  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 75145 cubic inches would be around 3.5 feet tall.

Recreational maths with 75145

• 75145 backwards is 54157
• The number of decimal digits it has is: 5
• The sum of 75145's digits is 22
• More coming soon!