138458401

Names of 138458401

• Cardinal: 138458401 can be written as One hundred thirty-eight million, four hundred fifty-eight thousand, four hundred one.

Scientific notation

• Scientific notation: 1.38458401 × 10⁸

Factors of 138458401

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138458401

Divisors of 138458401

• Number of divisors d(n): 2
• Complete list of divisors:
  1 138458401
• Sum of all divisors σ(n): 138458402
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138458401 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138458400

Bases of 138458401

• Binary: 1000010000001011010100100001₂
• Hexadecimal: 0x840B521
• Base-36: 2AFN6P

Squares and roots of 138458401

• 138458401 squared (138458401²) is 19170728807476801
• 138458401 cubed (138458401³) is 2654348456687874711055201
• The square root of 138458401 is 11766.8347910557
• The cube root of 138458401 is 517.3364801885

Scales and comparisons

• 138,458,401 seconds is equal to 4 years, 20 weeks, 6 days, 12 hours, 40 minutes, 1 second.
• To count from 1 to 138,458,401 would take you about six 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 138458401 cubic inches would be around 43.1 feet tall.

Recreational maths with 138458401

• 138458401 backwards is 104854831
• The number of decimal digits it has is: 9
• The sum of 138458401's digits is 34
• More coming soon!