689438230

Names of 689438230

• Cardinal: 689438230 can be written as Six hundred eighty-nine million, four hundred thirty-eight thousand, two hundred thirty.

Scientific notation

• Scientific notation: 6.8943823 × 10⁸

Factors of 689438230

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 312000

Divisors of 689438230

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 311963 623926 1559815 3119630 4055519 5303371 8111038 10606742 20277595 26516855 40555190 53033710 68943823 137887646 344719115 689438230
• Sum of all divisors σ(n): 1415068704
• Sum of proper divisors (its aliquot sum) s(n): 725630474
• 689438230 is an abundant number, because the sum of its proper divisors (725630474) is greater than itself. Its abundance is 36192244

Bases of 689438230

• Binary: 101001000101111111111000010110₂
• Hexadecimal: 0x2917FE16
• Base-36: BEH1XY

Squares and roots of 689438230

• 689438230 squared (689438230²) is 475325072985532900
• 689438230 cubed (689438230³) is 327707276993766618182767000
• The square root of 689438230 is 26257.1557865661
• The cube root of 689438230 is 883.4157149543

Scales and comparisons

• 689,438,230 seconds is equal to 21 years, 47 weeks, 6 days, 14 hours, 37 minutes, 10 seconds.
• To count from 1 to 689,438,230 would take you about thirty-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 689438230 cubic inches would be around 73.6 feet tall.

Recreational maths with 689438230

• 689438230 backwards is 032834986
• The number of decimal digits it has is: 9
• The sum of 689438230's digits is 43
• More coming soon!