137728478

Names of 137728478

• Cardinal: 137728478 can be written as One hundred thirty-seven million, seven hundred twenty-eight thousand, four hundred seventy-eight.

Scientific notation

• Scientific notation: 1.37728478 × 10⁸

Factors of 137728478

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 68864241

Divisors of 137728478

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 68864239 137728478
• Sum of all divisors σ(n): 206592720
• Sum of proper divisors (its aliquot sum) s(n): 68864242
• 137728478 is a deficient number, because the sum of its proper divisors (68864242) is less than itself. Its deficiency is 68864236

Bases of 137728478

• Binary: 1000001101011001000111011110₂
• Hexadecimal: 0x83591DE
• Base-36: 29ZZZ2

Squares and roots of 137728478

• 137728478 squared (137728478²) is 18969133652196484
• 137728478 cubed (137728478³) is 2612589906895603098271352
• The square root of 137728478 is 11735.7776904643
• The cube root of 137728478 is 516.4257823111

Scales and comparisons

• 137,728,478 seconds is equal to 4 years, 19 weeks, 5 days, 1 hour, 54 minutes, 38 seconds.
• To count from 1 to 137,728,478 would take you about six 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 137728478 cubic inches would be around 43 feet tall.

Recreational maths with 137728478

• 137728478 backwards is 874827731
• The number of decimal digits it has is: 9
• The sum of 137728478's digits is 47
• More coming soon!