728630828

Names of 728630828

• Cardinal: 728630828 can be written as Seven hundred twenty-eight million, six hundred thirty thousand, eight hundred twenty-eight.

Scientific notation

• Scientific notation: 7.28630828 × 10⁸

Factors of 728630828

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 182157709

Divisors of 728630828

• Number of divisors d(n): 6
• Complete list of divisors:
  1 2 4 182157707 364315414 728630828
• Sum of all divisors σ(n): 1275103956
• Sum of proper divisors (its aliquot sum) s(n): 546473128
• 728630828 is a deficient number, because the sum of its proper divisors (546473128) is less than itself. Its deficiency is 182157700

Bases of 728630828

• Binary: 101011011011100000011000101100₂
• Hexadecimal: 0x2B6E062C
• Base-36: C1T358

Squares and roots of 728630828

• 728630828 squared (728630828²) is 530902883511965584
• 728630828 cubed (728630828³) is 386832207600911031377423552
• The square root of 728630828 is 26993.1626157441
• The cube root of 728630828 is 899.8480517141

Scales and comparisons

• 728,630,828 seconds is equal to 23 years, 8 weeks, 5 days, 5 hours, 27 minutes, 8 seconds.
• To count from 1 to 728,630,828 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 728630828 cubic inches would be around 75 feet tall.

Recreational maths with 728630828

• 728630828 backwards is 828036827
• The number of decimal digits it has is: 9
• The sum of 728630828's digits is 44
• More coming soon!