21348474551921672

Names of 21348474551921672

• Cardinal: 21348474551921672 can be written as Twenty-one quadrillion, three hundred forty-eight trillion, four hundred seventy-four billion, five hundred fifty-one million, nine hundred twenty-one thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1348474551921672 × 10¹⁶

Factors of 21348474551921672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 317992681

Divisors of 21348474551921672

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 4 8 227 454 908 1816 36973 73946 147892 295784 8392871 16785742 33571484 67142968 317955479 635910958 1271821916 2543643832 72175893733 144351787466 288703574932 577407149864 11755767925067 23511535850134 47023071700268 94046143400536 2668559318990209 5337118637980418 10674237275960836 21348474551921672
• Sum of all divisors σ(n): 40205813837918400
• Sum of proper divisors (its aliquot sum) s(n): 18857339285996728
• 21348474551921672 is a deficient number, because the sum of its proper divisors (18857339285996728) is less than itself. Its deficiency is 2491135265924944

Bases of 21348474551921672

• Binary: 1001011110110000101001100010010001010011110110000001000₂
• Hexadecimal: 0x4BD8531229EC08
• Base-36: 5U7EHTEXOG8

Squares and roots of 21348474551921672

• 21348474551921672 squared (21348474551921672²) is 455757365694047234074588023275584
• 21348474551921672 cubed (21348474551921672³) is 9729724523370226631587246353032194376251238056448
• The square root of 21348474551921672 is 146111171.8929174559
• The cube root of 21348474551921672 is 277410.1088145185

Scales and comparisons

• 21,348,474,551,921,672 seconds is equal to 678,815,455 years, 30 weeks, 2 days, 10 hours, 14 minutes, 32 seconds.
• To count from 1 to 21,348,474,551,921,672 would take you about two billion, thirty-six million, four hundred forty-six thousand, three hundred sixty-six 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 21348474551921672 cubic inches would be around 23117.5 feet tall.

Recreational maths with 21348474551921672

• 21348474551921672 backwards is 27612915547484312
• The number of decimal digits it has is: 17
• The sum of 21348474551921672's digits is 71
• More coming soon!