1438721036

Names of 1438721036

• Cardinal: 1438721036 can be written as One billion, four hundred thirty-eight million, seven hundred twenty-one thousand and thirty-six.

Scientific notation

• Scientific notation: 1.438721036 × 10⁹

Factors of 1438721036

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 11602622

Divisors of 1438721036

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 31 62 124 11602589 23205178 46410356 359680259 719360518 1438721036
• Sum of all divisors σ(n): 2598980160
• Sum of proper divisors (its aliquot sum) s(n): 1160259124
• 1438721036 is a deficient number, because the sum of its proper divisors (1160259124) is less than itself. Its deficiency is 278461912

Bases of 1438721036

• Binary: 1010101110000010010010000001100₂
• Hexadecimal: 0x55C1240C
• Base-36: NSKS98

Squares and roots of 1438721036

• 1438721036 squared (1438721036²) is 2069918219428913296
• 1438721036 cubed (1438721036³) is 2978034885092041465575294656
• The square root of 1438721036 is 37930.4763481821
• The cube root of 1438721036 is 1128.9088158521

Scales and comparisons

• 1,438,721,036 seconds is equal to 45 years, 38 weeks, 5 days, 20 hours, 43 minutes, 56 seconds.
• To count from 1 to 1,438,721,036 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 1438721036 cubic inches would be around 94.1 feet tall.

Recreational maths with 1438721036

• 1438721036 backwards is 6301278341
• The number of decimal digits it has is: 10
• The sum of 1438721036's digits is 35
• More coming soon!