729345428

Names of 729345428

• Cardinal: 729345428 can be written as Seven hundred twenty-nine million, three hundred forty-five thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 7.29345428 × 10⁸

Factors of 729345428

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 26048060

Divisors of 729345428

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 7 14 28 26048051 52096102 104192204 182336357 364672714 729345428
• Sum of all divisors σ(n): 1458690912
• Sum of proper divisors (its aliquot sum) s(n): 729345484
• 729345428 is an abundant number, because the sum of its proper divisors (729345484) is greater than itself. Its abundance is 56

Bases of 729345428

• Binary: 101011011110001110110110010100₂
• Hexadecimal: 0x2B78ED94
• Base-36: C28EJ8

Squares and roots of 729345428

• 729345428 squared (729345428²) is 531944753344503184
• 729345428 cubed (729345428³) is 387971473800401106181842752
• The square root of 729345428 is 27006.3960572305
• The cube root of 729345428 is 900.1421289939

Scales and comparisons

• 729,345,428 seconds is equal to 23 years, 9 weeks, 6 days, 11 hours, 57 minutes, 8 seconds.
• To count from 1 to 729,345,428 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 729345428 cubic inches would be around 75 feet tall.

Recreational maths with 729345428

• 729345428 backwards is 824543927
• The number of decimal digits it has is: 9
• The sum of 729345428's digits is 44
• More coming soon!