145472009

Names of 145472009

• Cardinal: 145472009 can be written as One hundred forty-five million, four hundred seventy-two thousand and nine.

Scientific notation

• Scientific notation: 1.45472009 × 10⁸

Factors of 145472009

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7995

Divisors of 145472009

• Number of divisors d(n): 8
• Complete list of divisors:
  1 17 1277 6701 21709 113917 8557177 145472009
• Sum of all divisors σ(n): 154172808
• Sum of proper divisors (its aliquot sum) s(n): 8700799
• 145472009 is a deficient number, because the sum of its proper divisors (8700799) is less than itself. Its deficiency is 136771210

Bases of 145472009

• Binary: 1000101010111011101000001001₂
• Hexadecimal: 0x8ABBA09
• Base-36: 2ELYX5

Squares and roots of 145472009

• 145472009 squared (145472009²) is 21162105402496081
• 145472009 cubed (145472009³) is 3078493987570858517696729
• The square root of 145472009 is 12061.1777617279
• The cube root of 145472009 is 525.9282251575

Scales and comparisons

• 145,472,009 seconds is equal to 4 years, 32 weeks, 3 days, 16 hours, 53 minutes, 29 seconds.
• To count from 1 to 145,472,009 would take you about six years!

  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 145472009 cubic inches would be around 43.8 feet tall.

Recreational maths with 145472009

• 145472009 backwards is 900274541
• The number of decimal digits it has is: 9
• The sum of 145472009's digits is 32
• More coming soon!