6742121905

Names of 6742121905

• Cardinal: 6742121905 can be written as Six billion, seven hundred forty-two million, one hundred twenty-one thousand, nine hundred five.

Scientific notation

• Scientific notation: 6.742121905 × 10⁹

Factors of 6742121905

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 58627175

Divisors of 6742121905

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 23 115 58627147 293135735 1348424381 6742121905
• Sum of all divisors σ(n): 8442309312
• Sum of proper divisors (its aliquot sum) s(n): 1700187407
• 6742121905 is a deficient number, because the sum of its proper divisors (1700187407) is less than itself. Its deficiency is 5041934498

Bases of 6742121905

• Binary: 110010001110111001001110110110001₂
• Hexadecimal: 0x191DC9DB1
• Base-36: 33I32K1

Squares and roots of 6742121905

• 6742121905 squared (6742121905²) is 45456207781880829025
• 6742121905 cubed (6742121905³) is 306471294204450199469012292625
• The square root of 6742121905 is 82110.4250689277
• The cube root of 6742121905 is 1889.1460458223

Scales and comparisons

• 6,742,121,905 seconds is equal to 214 years, 19 weeks, 4 days, 19 hours, 38 minutes, 25 seconds.
• To count from 1 to 6,742,121,905 would take you about four hundred twenty-eight 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 6742121905 cubic inches would be around 157.4 feet tall.

Recreational maths with 6742121905

• 6742121905 backwards is 5091212476
• The number of decimal digits it has is: 10
• The sum of 6742121905's digits is 37
• More coming soon!