1687978397216

Names of 1687978397216

• Cardinal: 1687978397216 can be written as One trillion, six hundred eighty-seven billion, nine hundred seventy-eight million, three hundred ninety-seven thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 1.687978397216 × 10¹²

Factors of 1687978397216

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 844

Divisors of 1687978397216

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 16 32 229 458 613 916 1226 1832 2452 3664 4904 7328 9808 19616 140377 280754 375769 561508 751538 1123016 1503076 2246032 3006152 4492064 6012304 12024608 86051101 172102202 230346397 344204404 460692794 688408808 921385588 1376817616 1842771176 2753635232 3685542352 7371084704 52749324913 105498649826 210997299652 421994599304 843989198608 1687978397216
• Sum of all divisors σ(n): 3343173082200
• Sum of proper divisors (its aliquot sum) s(n): 1655194684984
• 1687978397216 is a deficient number, because the sum of its proper divisors (1655194684984) is less than itself. Its deficiency is 32783712232

Bases of 1687978397216

• Binary: 11000100100000011010110100100111000100000₂
• Hexadecimal: 0x189035A4E20
• Base-36: LJG2R6ZK

Squares and roots of 1687978397216

• 1687978397216 squared (1687978397216²) is 2849271069467896276550656
• 1687978397216 cubed (1687978397216³) is 4809508013074337750859310599913373696
• The square root of 1687978397216 is 1299222.2278024649
• The cube root of 1687978397216 is 11906.6328327133

Scales and comparisons

• 1,687,978,397,216 seconds is equal to 53,672 years, 25 weeks, 4 days, 6 minutes, 56 seconds.
• To count from 1 to 1,687,978,397,216 would take you about one hundred thirty-four thousand, one hundred eighty-one 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 1687978397216 cubic inches would be around 992.2 feet tall.

Recreational maths with 1687978397216

• 1687978397216 backwards is 6127938797861
• The number of decimal digits it has is: 13
• The sum of 1687978397216's digits is 74
• More coming soon!