400048139

Names of 400048139

• Cardinal: 400048139 can be written as Four hundred million, forty-eight thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 4.00048139 × 10⁸

Factors of 400048139

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 400048139

Divisors of 400048139

• Number of divisors d(n): 2
• Complete list of divisors:
  1 400048139
• Sum of all divisors σ(n): 400048140
• Sum of proper divisors (its aliquot sum) s(n): 1
• 400048139 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 400048138

Bases of 400048139

• Binary: 10111110110000100000000001011₂
• Hexadecimal: 0x17D8400B
• Base-36: 6M6F4B

Squares and roots of 400048139

• 400048139 squared (400048139²) is 160038513517363321
• 400048139 cubed (400048139³) is 64023109500947540752909619
• The square root of 400048139 is 20001.2034387933
• The cube root of 400048139 is 736.8358561411

Scales and comparisons

• 400,048,139 seconds is equal to 12 years, 37 weeks, 3 days, 4 hours, 28 minutes, 59 seconds.
• To count from 1 to 400,048,139 would take you about nineteen 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 400048139 cubic inches would be around 61.4 feet tall.

Recreational maths with 400048139

• 400048139 backwards is 931840004
• The number of decimal digits it has is: 9
• The sum of 400048139's digits is 29
• More coming soon!