1438668380

Names of 1438668380

• Cardinal: 1438668380 can be written as One billion, four hundred thirty-eight million, six hundred sixty-eight thousand, three hundred eighty.

Scientific notation

• Scientific notation: 1.43866838 × 10⁹

Factors of 1438668380

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 71933426

Divisors of 1438668380

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 5 10 20 71933419 143866838 287733676 359667095 719334190 1438668380
• Sum of all divisors σ(n): 3021203640
• Sum of proper divisors (its aliquot sum) s(n): 1582535260
• 1438668380 is an abundant number, because the sum of its proper divisors (1582535260) is greater than itself. Its abundance is 143866880

Bases of 1438668380

• Binary: 1010101110000000101011001011100₂
• Hexadecimal: 0x55C0565C
• Base-36: NSJNMK

Squares and roots of 1438668380

• 1438668380 squared (1438668380²) is 2069766707611824400
• 1438668380 cubed (1438668380³) is 2977707916217837078392472000
• The square root of 1438668380 is 37929.7822297993
• The cube root of 1438668380 is 1128.8950433077

Scales and comparisons

• 1,438,668,380 seconds is equal to 45 years, 38 weeks, 5 days, 6 hours, 6 minutes, 20 seconds.
• To count from 1 to 1,438,668,380 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 1438668380 cubic inches would be around 94.1 feet tall.

Recreational maths with 1438668380

• 1438668380 backwards is 0838668341
• The number of decimal digits it has is: 10
• The sum of 1438668380's digits is 47
• More coming soon!