730

Names of 730

• Cardinal: 730 can be written as Seven hundred thirty.

Scientific notation

• Scientific notation: 7.3 × 10²

Factors of 730

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 80

Divisors of 730

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 73 146 365 730
• Sum of all divisors σ(n): 1332
• Sum of proper divisors (its aliquot sum) s(n): 602
• 730 is a deficient number, because the sum of its proper divisors (602) is less than itself. Its deficiency is 128

Bases of 730

• Binary: 1011011010₂
• Hexadecimal: 0x2DA
• Base-36: KA

Squares and roots of 730

• 730 squared (730²) is 532900
• 730 cubed (730³) is 389017000
• The square root of 730 is 27.0185121723
• The cube root of 730 is 9.0041133459

Scales and comparisons

• 730 seconds is equal to 12 minutes, 10 seconds.
• To count from 1 to 730 would take you about six minutes.

  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 730 cubic inches would be around 0.8 feet tall.

Recreational maths with 730

• 730 backwards is 037
• 730 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 730's digits is 10
• More coming soon!