21001207146452375

Names of 21001207146452375

• Cardinal: 21001207146452375 can be written as Twenty-one quadrillion, one trillion, two hundred seven billion, one hundred forty-six million, four hundred fifty-two thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 2.1001207146452375 × 10¹⁶

Factors of 21001207146452375

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1718717654

Divisors of 21001207146452375

• Number of divisors d(n): 32
• Complete list of divisors:
  1 5 25 67 125 335 1459 1675 7295 8375 36475 97753 182375 488765 2443825 12219125 1718716123 8593580615 42967903075 115153980241 214839515375 575769901205 2507606823457 2878849506025 12538034117285 14394247530125 62690170586425 168009657171619 313450852932125 840048285858095 4200241429290475 21001207146452375
• Sum of all divisors σ(n): 26618925339352320
• Sum of proper divisors (its aliquot sum) s(n): 5617718192899945
• 21001207146452375 is a deficient number, because the sum of its proper divisors (5617718192899945) is less than itself. Its deficiency is 15383488953552430

Bases of 21001207146452375

• Binary: 1001010100111000111110010010011110100011001010110010111₂
• Hexadecimal: 0x4A9C7C93D19597
• Base-36: 5QSB1DFWBKN

Squares and roots of 21001207146452375

• 21001207146452375 squared (21001207146452375²) is 441050701608202307481548143140625
• 21001207146452375 cubed (21001207146452375³) is 9262597146562012303235188645714889974159490234375
• The square root of 21001207146452375 is 144917932.4530003603
• The cube root of 21001207146452375 is 275897.7039265557

Scales and comparisons

• 21,001,207,146,452,375 seconds is equal to 667,773,426 years, 13 weeks, 3 days, 19 minutes, 35 seconds.
• To count from 1 to 21,001,207,146,452,375 would take you about two billion, three million, three hundred twenty thousand, two hundred seventy-eight 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 21001207146452375 cubic inches would be around 22991.5 feet tall.

Recreational maths with 21001207146452375

• 21001207146452375 backwards is 57325464170210012
• The number of decimal digits it has is: 17
• The sum of 21001207146452375's digits is 50
• More coming soon!