15145

Names of 15145

• Cardinal: 15145 can be written as Fifteen thousand, one hundred forty-five.

Scientific notation

• Scientific notation: 1.5145 × 10⁴

Factors of 15145

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 251

Divisors of 15145

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 13 65 233 1165 3029 15145
• Sum of all divisors σ(n): 19656
• Sum of proper divisors (its aliquot sum) s(n): 4511
• 15145 is a deficient number, because the sum of its proper divisors (4511) is less than itself. Its deficiency is 10634

Bases of 15145

• Binary: 11101100101001₂
• Hexadecimal: 0x3B29
• Base-36: BOP

Squares and roots of 15145

• 15145 squared (15145²) is 229371025
• 15145 cubed (15145³) is 3473824173625
• The square root of 15145 is 123.0650234631
• The cube root of 15145 is 24.7413328833

Scales and comparisons

• 15,145 seconds is equal to 4 hours, 12 minutes, 25 seconds.
• To count from 1 to 15,145 would take you about four 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 15145 cubic inches would be around 2.1 feet tall.

Recreational maths with 15145

• 15145 backwards is 54151
• The number of decimal digits it has is: 5
• The sum of 15145's digits is 16
• More coming soon!