147

Names of 147

• Cardinal: 147 can be written as One hundred forty-seven.

Scientific notation

• Scientific notation: 1.47 × 10²

Factors of 147

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 10

Divisors of 147

• Number of divisors d(n): 6
• Complete list of divisors:
  1 3 7 21 49 147
• Sum of all divisors σ(n): 228
• Sum of proper divisors (its aliquot sum) s(n): 81
• 147 is a deficient number, because the sum of its proper divisors (81) is less than itself. Its deficiency is 66

Bases of 147

• Binary: 10010011₂
• Hexadecimal: 0x93
• Base-36: 43

Squares and roots of 147

• 147 squared (147²) is 21609
• 147 cubed (147³) is 3176523
• The square root of 147 is 12.1243556529
• The cube root of 147 is 5.2776320879

Scales and comparisons

• 147 seconds is equal to 2 minutes, 27 seconds.
• To count from 1 to 147 would take you about thirteen seconds.

  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 147 cubic inches would be around 0.4 feet tall.

Recreational maths with 147

• 147 backwards is 741
• The number of decimal digits it has is: 3
• The sum of 147's digits is 12
• More coming soon!