21420642628122810

Names of 21420642628122810

• Cardinal: 21420642628122810 can be written as Twenty-one quadrillion, four hundred twenty trillion, six hundred forty-two billion, six hundred twenty-eight million, one hundred twenty-two thousand, eight hundred ten.

Scientific notation

• Scientific notation: 2.142064262812281 × 10¹⁶

Factors of 21420642628122810

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 96456215

Divisors of 21420642628122810

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 30 1889 3778 3919 5667 7838 9445 11334 11757 18890 19595 23514 28335 39190 56670 58785 117570 7402991 14805982 22208973 37014955 44417946 74029910 96450397 111044865 192900794 222089730 289351191 482251985 578702382 964503970 1446755955 2893511910 182194799933 364389599866 377989105843 546584399799 755978211686 910973999665 1093168799598 1133967317529 1821947999330 1889945529215 2267934635058 2732921998995 3779891058430 5465843997990 5669836587645 11339673175290 714021420937427 1428042841874854 2142064262812281 3570107104687135 4284128525624562 7140214209374270 10710321314061405 21420642628122810
• Sum of all divisors σ(n): 51449883026572800
• Sum of proper divisors (its aliquot sum) s(n): 30029240398449990
• 21420642628122810 is an abundant number, because the sum of its proper divisors (30029240398449990) is greater than itself. Its abundance is 8608597770327180

Bases of 21420642628122810

• Binary: 1001100000110011111011000000010101101011011100010111010₂
• Hexadecimal: 0x4C19F602B5B8BA
• Base-36: 5UWZFDG6IT6

Squares and roots of 21420642628122810

• 21420642628122810 squared (21420642628122810²) is 458843930601752084626304442296100
• 21420642628122810 cubed (21420642628122810³) is 9828731859503315018551281560266562306709184041000
• The square root of 21420642628122810 is 146357926.4273814793
• The cube root of 21420642628122810 is 277722.3502794641

Scales and comparisons

• 21,420,642,628,122,810 seconds is equal to 681,110,177 years, 9 weeks, 1 day, 3 hours, 53 minutes, 30 seconds.
• To count from 1 to 21,420,642,628,122,810 would take you about two billion, forty-three million, three hundred thirty thousand, five hundred thirty-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 21420642628122810 cubic inches would be around 23143.5 feet tall.

Recreational maths with 21420642628122810

• 21420642628122810 backwards is 01822182624602412
• The number of decimal digits it has is: 17
• The sum of 21420642628122810's digits is 51
• More coming soon!