21004339407

Names of 21004339407

• Cardinal: 21004339407 can be written as Twenty-one billion, four million, three hundred thirty-nine thousand, four hundred seven.

Scientific notation

• Scientific notation: 2.1004339407 × 10¹⁰

Factors of 21004339407

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 7001446472

Divisors of 21004339407

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 7001446469 21004339407
• Sum of all divisors σ(n): 28005785880
• Sum of proper divisors (its aliquot sum) s(n): 7001446473
• 21004339407 is a deficient number, because the sum of its proper divisors (7001446473) is less than itself. Its deficiency is 14002892934

Bases of 21004339407

• Binary: 10011100011111101001100100011001111₂
• Hexadecimal: 0x4E3F4C8CF
• Base-36: 9NDFW0F

Squares and roots of 21004339407

• 21004339407 squared (21004339407²) is 441182273924453111649
• 21004339407 cubed (21004339407³) is 9266742221861259033932861452143
• The square root of 21004339407 is 144928.7390651005
• The cube root of 21004339407 is 2759.1141965453

Scales and comparisons

• 21,004,339,407 seconds is equal to 667 years, 45 weeks, 2 days, 18 hours, 43 minutes, 27 seconds.
• To count from 1 to 21,004,339,407 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 21004339407 cubic inches would be around 229.9 feet tall.

Recreational maths with 21004339407

• 21004339407 backwards is 70493340012
• The number of decimal digits it has is: 11
• The sum of 21004339407's digits is 33
• More coming soon!