21378556014894

Names of 21378556014894

• Cardinal: 21378556014894 can be written as Twenty-one trillion, three hundred seventy-eight billion, five hundred fifty-six million, fourteen thousand, eight hundred ninety-four.

Scientific notation

• Scientific notation: 2.1378556014894 × 10¹³

Factors of 21378556014894

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1869660

Divisors of 21378556014894

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 39 54 78 117 234 351 702 16433 32866 49299 98598 147897 213629 295794 427258 443691 640887 887382 1281774 1853209 1922661 3706418 3845322 5559627 5767983 11119254 11535966 16678881 24091717 33357762 48183434 50036643 72275151 100073286 144550302 216825453 433650906 650476359 1300952718 30453783497 60907566994 91361350491 182722700982 274084051473 395899185461 548168102946 791798370922 822252154419 1187697556383 1644504308838 2375395112766 3563092669149 7126185338298 10689278007447 21378556014894
• Sum of all divisors σ(n): 51165497275200
• Sum of proper divisors (its aliquot sum) s(n): 29786941260306
• 21378556014894 is an abundant number, because the sum of its proper divisors (29786941260306) is greater than itself. Its abundance is 8408385245412

Bases of 21378556014894

• Binary: 100110111000110010101001111001011000100101110₂
• Hexadecimal: 0x1371953CB12E
• Base-36: 7KT689U7I

Squares and roots of 21378556014894

• 21378556014894 squared (21378556014894²) is 457042657281960426349831236
• 21378556014894 cubed (21378556014894³) is 9770912049898392102061261259429602428984
• The square root of 21378556014894 is 4623695.0607597383
• The cube root of 21378556014894 is 27754.0344278551

Scales and comparisons

• 21,378,556,014,894 seconds is equal to 679,771 years, 49 weeks, 3 days, 21 hours, 54 minutes, 54 seconds.
• To count from 1 to 21,378,556,014,894 would take you about one million, six hundred ninety-nine thousand, four hundred twenty-nine 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 21378556014894 cubic inches would be around 2312.8 feet tall.

Recreational maths with 21378556014894

• 21378556014894 backwards is 49841065587312
• The number of decimal digits it has is: 14
• The sum of 21378556014894's digits is 63
• More coming soon!