72801

Names of 72801

• Cardinal: 72801 can be written as Seventy-two thousand, eight hundred one.

Scientific notation

• Scientific notation: 7.2801 × 10⁴

Factors of 72801

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 8092

Divisors of 72801

• Number of divisors d(n): 6
• Complete list of divisors:
  1 3 9 8089 24267 72801
• Sum of all divisors σ(n): 105170
• Sum of proper divisors (its aliquot sum) s(n): 32369
• 72801 is a deficient number, because the sum of its proper divisors (32369) is less than itself. Its deficiency is 40432

Bases of 72801

• Binary: 10001110001100001₂
• Hexadecimal: 0x11C61
• Base-36: 1K69

Squares and roots of 72801

• 72801 squared (72801²) is 5299985601
• 72801 cubed (72801³) is 385844251738401
• The square root of 72801 is 269.8166043815
• The cube root of 72801 is 41.7553807591

Scales and comparisons

• 72,801 seconds is equal to 20 hours, 13 minutes, 21 seconds.
• To count from 1 to 72,801 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 72801 cubic inches would be around 3.5 feet tall.

Recreational maths with 72801

• 72801 backwards is 10827
• The number of decimal digits it has is: 5
• The sum of 72801's digits is 18
• More coming soon!