138090158

Names of 138090158

• Cardinal: 138090158 can be written as One hundred thirty-eight million, ninety thousand, one hundred fifty-eight.

Scientific notation

• Scientific notation: 1.38090158 × 10⁸

Factors of 138090158

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 945898

Divisors of 138090158

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 73 146 945823 1891646 69045079 138090158
• Sum of all divisors σ(n): 209972928
• Sum of proper divisors (its aliquot sum) s(n): 71882770
• 138090158 is a deficient number, because the sum of its proper divisors (71882770) is less than itself. Its deficiency is 66207388

Bases of 138090158

• Binary: 1000001110110001011010101110₂
• Hexadecimal: 0x83B16AE
• Base-36: 2A7R1Q

Squares and roots of 138090158

• 138090158 squared (138090158²) is 19068891736464964
• 138090158 cubed (138090158³) is 2633226272773341240224312
• The square root of 138090158 is 11751.1768772323
• The cube root of 138090158 is 516.8774381583

Scales and comparisons

• 138,090,158 seconds is equal to 4 years, 20 weeks, 2 days, 6 hours, 22 minutes, 38 seconds.
• To count from 1 to 138,090,158 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 138090158 cubic inches would be around 43.1 feet tall.

Recreational maths with 138090158

• 138090158 backwards is 851090831
• The number of decimal digits it has is: 9
• The sum of 138090158's digits is 35
• More coming soon!