728190226

Names of 728190226

• Cardinal: 728190226 can be written as Seven hundred twenty-eight million, one hundred ninety thousand, two hundred twenty-six.

Scientific notation

• Scientific notation: 7.28190226 × 10⁸

Factors of 728190226

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 44156

Divisors of 728190226

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 10973 21946 33181 66362 364095113 728190226
• Sum of all divisors σ(n): 1092417804
• Sum of proper divisors (its aliquot sum) s(n): 364227578
• 728190226 is a deficient number, because the sum of its proper divisors (364227578) is less than itself. Its deficiency is 363962648

Bases of 728190226

• Binary: 101011011001110100110100010010₂
• Hexadecimal: 0x2B674D12
• Base-36: C1JN6A

Squares and roots of 728190226

• 728190226 squared (728190226²) is 530261005241931076
• 728190226 cubed (728190226³) is 386130881246108974908863176
• The square root of 728190226 is 26985.0000185289
• The cube root of 728190226 is 899.6666362067

Scales and comparisons

• 728,190,226 seconds is equal to 23 years, 8 weeks, 3 hours, 3 minutes, 46 seconds.
• To count from 1 to 728,190,226 would take you about thirty-four 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 728190226 cubic inches would be around 75 feet tall.

Recreational maths with 728190226

• 728190226 backwards is 622091827
• The number of decimal digits it has is: 9
• The sum of 728190226's digits is 37
• More coming soon!