1438907402

Names of 1438907402

• Cardinal: 1438907402 can be written as One billion, four hundred thirty-eight million, nine hundred seven thousand, four hundred two.

Scientific notation

• Scientific notation: 1.438907402 × 10⁹

Factors of 1438907402

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 207400

Divisors of 1438907402

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 3529 7058 203869 407738 719453701 1438907402
• Sum of all divisors σ(n): 2158983300
• Sum of proper divisors (its aliquot sum) s(n): 720075898
• 1438907402 is a deficient number, because the sum of its proper divisors (720075898) is less than itself. Its deficiency is 718831504

Bases of 1438907402

• Binary: 1010101110000111111110000001010₂
• Hexadecimal: 0x55C3FC0A
• Base-36: NSOS22

Squares and roots of 1438907402

• 1438907402 squared (1438907402²) is 2070454511530389604
• 1438907402 cubed (1438907402³) is 2979192322145371949139448808
• The square root of 1438907402 is 37932.9329475061
• The cube root of 1438907402 is 1128.9575584809

Scales and comparisons

• 1,438,907,402 seconds is equal to 45 years, 39 weeks, 1 day, 30 minutes, 2 seconds.
• To count from 1 to 1,438,907,402 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 1438907402 cubic inches would be around 94.1 feet tall.

Recreational maths with 1438907402

• 1438907402 backwards is 2047098341
• The number of decimal digits it has is: 10
• The sum of 1438907402's digits is 38
• More coming soon!