21001680501

Names of 21001680501

• Cardinal: 21001680501 can be written as Twenty-one billion, one million, six hundred eighty thousand, five hundred one.

Scientific notation

• Scientific notation: 2.1001680501 × 10¹⁰

Factors of 21001680501

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 55122651

Divisors of 21001680501

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 127 381 55122521 165367563 7000560167 21001680501
• Sum of all divisors σ(n): 28222731264
• Sum of proper divisors (its aliquot sum) s(n): 7221050763
• 21001680501 is a deficient number, because the sum of its proper divisors (7221050763) is less than itself. Its deficiency is 13780629738

Bases of 21001680501

• Binary: 10011100011110011000011011001110101₂
• Hexadecimal: 0x4E3CC3675
• Base-36: 9NBUWDX

Squares and roots of 21001680501

• 21001680501 squared (21001680501²) is 441070583866083611001
• 21001680501 cubed (21001680501³) is 9263223480745013368395370791501
• The square root of 21001680501 is 144919.5656252115
• The cube root of 21001680501 is 2758.9977676695

Scales and comparisons

• 21,001,680,501 seconds is equal to 667 years, 41 weeks, 8 minutes, 21 seconds.
• To count from 1 to 21,001,680,501 would take you about one thousand, three hundred thirty-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 21001680501 cubic inches would be around 229.9 feet tall.

Recreational maths with 21001680501

• 21001680501 backwards is 10508610012
• The number of decimal digits it has is: 11
• The sum of 21001680501's digits is 24
• More coming soon!