21060013

Names of 21060013

• Cardinal: 21060013 can be written as Twenty-one million, sixty thousand and thirteen.

Scientific notation

• Scientific notation: 2.1060013 × 10⁷

Factors of 21060013

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1620014

Divisors of 21060013

• Number of divisors d(n): 4
• Complete list of divisors:
  1 13 1620001 21060013
• Sum of all divisors σ(n): 22680028
• Sum of proper divisors (its aliquot sum) s(n): 1620015
• 21060013 is a deficient number, because the sum of its proper divisors (1620015) is less than itself. Its deficiency is 19439998

Bases of 21060013

• Binary: 1010000010101100110101101₂
• Hexadecimal: 0x14159AD
• Base-36: CJE0D

Squares and roots of 21060013

• 21060013 squared (21060013²) is 443524147560169
• 21060013 cubed (21060013³) is 9340624313431077422197
• The square root of 21060013 is 4589.1189786275
• The cube root of 21060013 is 276.1549792975

Scales and comparisons

• 21,060,013 seconds is equal to 34 weeks, 5 days, 18 hours, 13 seconds.
• To count from 1 to 21,060,013 would take you about fifteen hours!

  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 21060013 cubic inches would be around 23 feet tall.

Recreational maths with 21060013

• 21060013 backwards is 31006012
• 21060013 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21060013's digits is 13
• More coming soon!