72681372216

Names of 72681372216

• Cardinal: 72681372216 can be written as Seventy-two billion, six hundred eighty-one million, three hundred seventy-two thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 7.2681372216 × 10¹⁰

Factors of 72681372216

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 67429

Divisors of 72681372216

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 72 22441 44882 44983 67323 89764 89966 134646 134949 179528 179932 201969 269292 269898 359864 403938 404847 538584 539796 807876 809694 1079592 1615752 1619388 3238776 1009463503 2018927006 3028390509 4037854012 6056781018 8075708024 9085171527 12113562036 18170343054 24227124072 36340686108 72681372216
• Sum of all divisors σ(n): 196858530960
• Sum of proper divisors (its aliquot sum) s(n): 124177158744
• 72681372216 is an abundant number, because the sum of its proper divisors (124177158744) is greater than itself. Its abundance is 51495786528

Bases of 72681372216

• Binary: 1000011101100001001011011101000111000₂
• Hexadecimal: 0x10EC25BA38
• Base-36: XE0M1Q0

Squares and roots of 72681372216

• 72681372216 squared (72681372216²) is 5282581867200736750656
• 72681372216 cubed (72681372216³) is 383945298951509029763859118173696
• The square root of 72681372216 is 269594.8297278713
• The cube root of 72681372216 is 4173.2497180717

Scales and comparisons

• 72,681,372,216 seconds is equal to 2,311 years, 2 weeks, 1 day, 14 hours, 3 minutes, 36 seconds.
• To count from 1 to 72,681,372,216 would take you about four thousand, six hundred twenty-two 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 72681372216 cubic inches would be around 347.8 feet tall.

Recreational maths with 72681372216

• 72681372216 backwards is 61227318627
• The number of decimal digits it has is: 11
• The sum of 72681372216's digits is 45
• More coming soon!