1438147478

Names of 1438147478

• Cardinal: 1438147478 can be written as One billion, four hundred thirty-eight million, one hundred forty-seven thousand, four hundred seventy-eight.

Scientific notation

• Scientific notation: 1.438147478 × 10⁹

Factors of 1438147478

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 58702

Divisors of 1438147478

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 17419 34838 41281 82562 719073739 1438147478
• Sum of all divisors σ(n): 2157397320
• Sum of proper divisors (its aliquot sum) s(n): 719249842
• 1438147478 is a deficient number, because the sum of its proper divisors (719249842) is less than itself. Its deficiency is 718897636

Bases of 1438147478

• Binary: 1010101101110000110001110010110₂
• Hexadecimal: 0x55B86396
• Base-36: NS8HP2

Squares and roots of 1438147478

• 1438147478 squared (1438147478²) is 2068268168477760484
• 1438147478 cubed (1438147478³) is 2974474650323970339152659352
• The square root of 1438147478 is 37922.9149459795
• The cube root of 1438147478 is 1128.7587796443

Scales and comparisons

• 1,438,147,478 seconds is equal to 45 years, 37 weeks, 6 days, 5 hours, 24 minutes, 38 seconds.
• To count from 1 to 1,438,147,478 would take you about ninety-one 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 1438147478 cubic inches would be around 94.1 feet tall.

Recreational maths with 1438147478

• 1438147478 backwards is 8747418341
• The number of decimal digits it has is: 10
• The sum of 1438147478's digits is 47
• More coming soon!