21312272873728641

Names of 21312272873728641

• Cardinal: 21312272873728641 can be written as Twenty-one quadrillion, three hundred twelve trillion, two hundred seventy-two billion, eight hundred seventy-three million, seven hundred twenty-eight thousand, six hundred forty-one.

Scientific notation

• Scientific notation: 2.1312272873728641 × 10¹⁶

Factors of 21312272873728641

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 586975

Divisors of 21312272873728641

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 7 21 49 147 1693 5079 11851 35553 82957 248871 292561 292711 877683 878133 2047927 2048977 6143781 6146931 14335489 14342839 43006467 43028517 495305773 495559723 1485917319 1486679169 3467140411 3468918061 10401421233 10406754183 24269982877 24282426427 72809948631 72847279281 85635822871 256907468613 599450760097 1798352280291 4196155320679 12588465962037 144981448120603 434944344361809 1014870136844221 3044610410532663 7104090957909547 21312272873728641
• Sum of all divisors σ(n): 33075521190273408
• Sum of proper divisors (its aliquot sum) s(n): 11763248316544767
• 21312272873728641 is a deficient number, because the sum of its proper divisors (11763248316544767) is less than itself. Its deficiency is 9549024557183874

Bases of 21312272873728641

• Binary: 1001011101101110110011000110101111111101010101010000001₂
• Hexadecimal: 0x4BB76635FEAA81
• Base-36: 5TUKIZUFSZL

Squares and roots of 21312272873728641

• 21312272873728641 squared (21312272873728641²) is 454212975044269665766442103706881
• 21312272873728641 cubed (21312272873728641³) is 9680310866931572568160152494090938820626198478721
• The square root of 21312272873728641 is 145987235.3109292943
• The cube root of 21312272873728641 is 277253.2140215699

Scales and comparisons

• 21,312,272,873,728,641 seconds is equal to 677,664,354 years, 10 weeks, 1 day, 9 hours, 57 minutes, 21 seconds.
• To count from 1 to 21,312,272,873,728,641 would take you about two billion, thirty-two million, nine hundred ninety-three thousand and sixty-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 21312272873728641 cubic inches would be around 23104.4 feet tall.

Recreational maths with 21312272873728641

• 21312272873728641 backwards is 14682737827221312
• The number of decimal digits it has is: 17
• The sum of 21312272873728641's digits is 66
• More coming soon!