997840665725990399

Names of 997840665725990399

• Cardinal: 997840665725990399 can be written as Nine hundred ninety-seven quadrillion, eight hundred forty trillion, six hundred sixty-five billion, seven hundred twenty-five million, nine hundred ninety thousand, three hundred ninety-nine.

Scientific notation

• Scientific notation: 9.97840665725990399 × 10¹⁷

Factors of 997840665725990399

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 895077817

Divisors of 997840665725990399

• Number of divisors d(n): 8
• Complete list of divisors:
  1 163 6892393 888185261 1123460059 144774197543 6121721875619573 997840665725990399
• Sum of all divisors σ(n): 1003962534394345392
• Sum of proper divisors (its aliquot sum) s(n): 6121868668354993
• 997840665725990399 is a deficient number, because the sum of its proper divisors (6121868668354993) is less than itself. Its deficiency is 991718797057635406

Bases of 997840665725990399

• Binary: 110111011001000010101100110001110111000010010111010111111111₂
• Hexadecimal: 0xDD90ACC770975FF
• Base-36: 7KX4ZTIYQNZZ

Squares and roots of 997840665725990399

• 997840665725990399 squared (997840665725990399²) is 995685994176487710570612729440179201
• 997840665725990399 cubed (997840665725990399³) is 993535975283111096671007724817809144765763409765491199
• The square root of 997840665725990399 is 998919749.3923074895
• The cube root of 997840665725990399 is 999279.7032057615

Scales and comparisons

• 997,840,665,725,990,399 seconds is equal to 31,728,246,646 years, 13 weeks, 23 hours, 59 minutes, 59 seconds.
• To count from 1 to 997,840,665,725,990,399 would take you about ninety-five billion, one hundred eighty-four million, seven hundred thirty-nine thousand, nine hundred thirty-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 997840665725990399 cubic inches would be around 83273.3 feet tall.

Recreational maths with 997840665725990399

• 997840665725990399 backwards is 993099527566048799
• The number of decimal digits it has is: 18
• The sum of 997840665725990399's digits is 107
• More coming soon!