21615630080672

Names of 21615630080672

• Cardinal: 21615630080672 can be written as Twenty-one trillion, six hundred fifteen billion, six hundred thirty million, eighty thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1615630080672 × 10¹³

Factors of 21615630080672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 121338277

Divisors of 21615630080672

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 16 19 32 38 76 152 293 304 586 608 1172 2344 4688 5567 9376 11134 22268 44536 89072 178144 121337963 242675926 485351852 970703704 1941407408 2305421297 3882814816 4610842594 9221685188 18443370376 35552023159 36886740752 71104046318 73773481504 142208092636 284416185272 568832370544 675488440021 1137664741088 1350976880042 2701953760084 5403907520168 10807815040336 21615630080672
• Sum of all divisors σ(n): 44948435384160
• Sum of proper divisors (its aliquot sum) s(n): 23332805303488
• 21615630080672 is an abundant number, because the sum of its proper divisors (23332805303488) is greater than itself. Its abundance is 1717175222816

Bases of 21615630080672

• Binary: 100111010100011000111111100111101101010100000₂
• Hexadecimal: 0x13A8C7F3DAA0
• Base-36: 7NU301U3K

Squares and roots of 21615630080672

• 21615630080672 squared (21615630080672²) is 467235463784452213227971584
• 21615630080672 cubed (21615630080672³) is 10099588945735938128236268355784843624448
• The square root of 21615630080672 is 4649261.2403124865
• The cube root of 21615630080672 is 27856.2488272241

Scales and comparisons

• 21,615,630,080,672 seconds is equal to 687,310 years, 9 weeks, 17 hours, 4 minutes, 32 seconds.
• To count from 1 to 21,615,630,080,672 would take you about one million, seven hundred eighteen thousand, two hundred seventy-five 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 21615630080672 cubic inches would be around 2321.4 feet tall.

Recreational maths with 21615630080672

• 21615630080672 backwards is 27608003651612
• The number of decimal digits it has is: 14
• The sum of 21615630080672's digits is 47
• More coming soon!