21046642494912272

Names of 21046642494912272

• Cardinal: 21046642494912272 can be written as Twenty-one quadrillion, forty-six trillion, six hundred forty-two billion, four hundred ninety-four million, nine hundred twelve thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 2.1046642494912272 × 10¹⁶

Factors of 21046642494912272

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3352534089

Divisors of 21046642494912272

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 7 8 14 16 28 56 112 56053 112106 224212 392371 448424 784742 896848 1569484 3138968 6277936 3352478027 6704956054 13409912108 23467346189 26819824216 46934692378 53639648432 93869384756 187738769512 375477539024 187916450847431 375832901694862 751665803389724 1315415155932017 1503331606779448 2630830311864034 3006663213558896 5261660623728068 10523321247456136 21046642494912272
• Sum of all divisors σ(n): 46604111238614976
• Sum of proper divisors (its aliquot sum) s(n): 25557468743702704
• 21046642494912272 is an abundant number, because the sum of its proper divisors (25557468743702704) is greater than itself. Its abundance is 4510826248790432

Bases of 21046642494912272

• Binary: 1001010110001011100111101010001100111111011011100010000₂
• Hexadecimal: 0x4AC5CF519FB710
• Base-36: 5R8EU319JBK

Squares and roots of 21046642494912272

• 21046642494912272 squared (21046642494912272²) is 442961160308647065319404976201984
• 21046642494912272 cubed (21046642494912272³) is 9322845180147618544236872530500799397957832347648
• The square root of 21046642494912272 is 145074610.0973987523
• The cube root of 21046642494912272 is 276096.5254996955

Scales and comparisons

• 21,046,642,494,912,272 seconds is equal to 669,218,129 years, 41 weeks, 3 days, 16 hours, 4 minutes, 32 seconds.
• To count from 1 to 21,046,642,494,912,272 would take you about two billion, seven million, six hundred fifty-four thousand, three hundred eighty-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 21046642494912272 cubic inches would be around 23008 feet tall.

Recreational maths with 21046642494912272

• 21046642494912272 backwards is 27221949424664012
• The number of decimal digits it has is: 17
• The sum of 21046642494912272's digits is 65
• More coming soon!