21137959168974672

Names of 21137959168974672

• Cardinal: 21137959168974672 can be written as Twenty-one quadrillion, one hundred thirty-seven trillion, nine hundred fifty-nine billion, one hundred sixty-eight million, nine hundred seventy-four thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1137959168974672 × 10¹⁶

Factors of 21137959168974672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 181747484621

Divisors of 21137959168974672

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 48 2423 4846 7269 9692 14538 19384 29076 38768 58152 116304 181747482193 363494964386 545242446579 726989928772 1090484893158 1453979857544 2180969786316 2907959715088 4361939572632 8723879145264 440374149353639 880748298707278 1321122448060917 1761496597414556 2642244896121834 3522993194829112 5284489792243668 7045986389658224 10568979584487336 21137959168974672
• Sum of all divisors σ(n): 54628931207943744
• Sum of proper divisors (its aliquot sum) s(n): 33490972038969072
• 21137959168974672 is an abundant number, because the sum of its proper divisors (33490972038969072) is greater than itself. Its abundance is 12353012869994400

Bases of 21137959168974672

• Binary: 1001011000110001101110010100011100010110001111101010000₂
• Hexadecimal: 0x4B18DCA38B1F50
• Base-36: 5S4S4DV9WEO

Squares and roots of 21137959168974672

• 21137959168974672 squared (21137959168974672²) is 446813317829240406101335777507584
• 21137959168974672 cubed (21137959168974672³) is 9444721668428586530741035140308444547264983912448
• The square root of 21137959168974672 is 145388992.5990777061
• The cube root of 21137959168974672 is 276495.2564086719

Scales and comparisons

• 21,137,959,168,974,672 seconds is equal to 672,121,717 years, 29 weeks, 5 days, 11 hours, 11 minutes, 12 seconds.
• To count from 1 to 21,137,959,168,974,672 would take you about two billion, sixteen million, three hundred sixty-five thousand, one hundred fifty-two 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 21137959168974672 cubic inches would be around 23041.3 feet tall.

Recreational maths with 21137959168974672

• 21137959168974672 backwards is 27647986195973112
• The number of decimal digits it has is: 17
• The sum of 21137959168974672's digits is 87
• More coming soon!