1388027438

Names of 1388027438

• Cardinal: 1388027438 can be written as One billion, three hundred eighty-eight million, twenty-seven thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 1.388027438 × 10⁹

Factors of 1388027438

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 19927

Divisors of 1388027438

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 7 14 9767 10151 19534 20302 68369 71057 136738 142114 99144817 198289634 694013719 1388027438
• Sum of all divisors σ(n): 2379953664
• Sum of proper divisors (its aliquot sum) s(n): 991926226
• 1388027438 is a deficient number, because the sum of its proper divisors (991926226) is less than itself. Its deficiency is 396101212

Bases of 1388027438

• Binary: 1010010101110111001111000101110₂
• Hexadecimal: 0x52BB9E2E
• Base-36: MYE8TQ

Squares and roots of 1388027438

• 1388027438 squared (1388027438²) is 1926620168640843844
• 1388027438 cubed (1388027438³) is 2674201656677678422945391672
• The square root of 1388027438 is 37256.2402558283
• The cube root of 1388027438 is 1115.4908623185

Scales and comparisons

• 1,388,027,438 seconds is equal to 44 years, 7 weeks, 3 hours, 10 minutes, 38 seconds.
• To count from 1 to 1,388,027,438 would take you about eighty-eight 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 1388027438 cubic inches would be around 93 feet tall.

Recreational maths with 1388027438

• 1388027438 backwards is 8347208831
• The number of decimal digits it has is: 10
• The sum of 1388027438's digits is 44
• More coming soon!