21012117116

Names of 21012117116

• Cardinal: 21012117116 can be written as Twenty-one billion, twelve million, one hundred seventeen thousand, one hundred sixteen.

Scientific notation

• Scientific notation: 2.1012117116 × 10¹⁰

Factors of 21012117116

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 5253029281

Divisors of 21012117116

• Number of divisors d(n): 6
• Complete list of divisors:
  1 2 4 5253029279 10506058558 21012117116
• Sum of all divisors σ(n): 36771204960
• Sum of proper divisors (its aliquot sum) s(n): 15759087844
• 21012117116 is a deficient number, because the sum of its proper divisors (15759087844) is less than itself. Its deficiency is 5253029272

Bases of 21012117116

• Binary: 10011100100011010110111011001111100₂
• Hexadecimal: 0x4E46B767C
• Base-36: 9NI2LBW

Squares and roots of 21012117116

• 21012117116 squared (21012117116²) is 441509065696500157456
• 21012117116 cubed (21012117116³) is 9277040196190599419777912616896
• The square root of 21012117116 is 144955.5694549195
• The cube root of 21012117116 is 2759.4547125167

Scales and comparisons

• 21,012,117,116 seconds is equal to 668 years, 6 weeks, 1 day, 19 hours, 11 minutes, 56 seconds.
• To count from 1 to 21,012,117,116 would take you about one thousand, three hundred thirty-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 21012117116 cubic inches would be around 230 feet tall.

Recreational maths with 21012117116

• 21012117116 backwards is 61171121012
• The number of decimal digits it has is: 11
• The sum of 21012117116's digits is 23
• More coming soon!