138805221142

Names of 138805221142

• Cardinal: 138805221142 can be written as One hundred thirty-eight billion, eight hundred five million, two hundred twenty-one thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 1.38805221142 × 10¹¹

Factors of 138805221142

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 10060

Divisors of 138805221142

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 7 14 503 1006 3019 3521 6038 6529 7042 13058 21133 42266 45703 91406 1518557 3037114 3284087 6568174 10629899 19711051 21259798 22988609 39422102 45977218 137977357 275954714 9914658653 19829317306 69402610571 138805221142
• Sum of all divisors σ(n): 238540377600
• Sum of proper divisors (its aliquot sum) s(n): 99735156458
• 138805221142 is a deficient number, because the sum of its proper divisors (99735156458) is less than itself. Its deficiency is 39070064684

Bases of 138805221142

• Binary: 10000001010001011011111001011100010110₂
• Hexadecimal: 0x20516F9716
• Base-36: 1RRL1M3A

Squares and roots of 138805221142

• 138805221142 squared (138805221142²) is 19266889416279523784164
• 138805221142 cubed (138805221142³) is 2674344846145138593747332697595288
• The square root of 138805221142 is 372565.7272777515
• The cube root of 138805221142 is 5177.6807338005

Scales and comparisons

• 138,805,221,142 seconds is equal to 4,413 years, 29 weeks, 6 days, 21 hours, 52 minutes, 22 seconds.
• To count from 1 to 138,805,221,142 would take you about eight thousand, eight hundred twenty-seven 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 138805221142 cubic inches would be around 431.5 feet tall.

Recreational maths with 138805221142

• 138805221142 backwards is 241122508831
• The number of decimal digits it has is: 12
• The sum of 138805221142's digits is 37
• More coming soon!