72742

Names of 72742

• Cardinal: 72742 can be written as Seventy-two thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 7.2742 × 10⁴

Factors of 72742

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1022

Divisors of 72742

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 37 74 983 1966 36371 72742
• Sum of all divisors σ(n): 112176
• Sum of proper divisors (its aliquot sum) s(n): 39434
• 72742 is a deficient number, because the sum of its proper divisors (39434) is less than itself. Its deficiency is 33308

Bases of 72742

• Binary: 10001110000100110₂
• Hexadecimal: 0x11C26
• Base-36: 1K4M

Squares and roots of 72742

• 72742 squared (72742²) is 5291398564
• 72742 cubed (72742³) is 384906914342488
• The square root of 72742 is 269.7072486975
• The cube root of 72742 is 41.7440977947

Scales and comparisons

• 72,742 seconds is equal to 20 hours, 12 minutes, 22 seconds.
• To count from 1 to 72,742 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 72742 cubic inches would be around 3.5 feet tall.

Recreational maths with 72742

• 72742 backwards is 24727
• The number of decimal digits it has is: 5
• The sum of 72742's digits is 22
• More coming soon!