21712117

Names of 21712117

• Cardinal: 21712117 can be written as Twenty-one million, seven hundred twelve thousand, one hundred seventeen.

Scientific notation

• Scientific notation: 2.1712117 × 10⁷

Factors of 21712117

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 163275

Divisors of 21712117

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 19 133 163249 1142743 3101731 21712117
• Sum of all divisors σ(n): 26120000
• Sum of proper divisors (its aliquot sum) s(n): 4407883
• 21712117 is a deficient number, because the sum of its proper divisors (4407883) is less than itself. Its deficiency is 17304234

Bases of 21712117

• Binary: 1010010110100110011110101₂
• Hexadecimal: 0x14B4CF5
• Base-36: CXD6D

Squares and roots of 21712117

• 21712117 squared (21712117²) is 471416024621689
• 21712117 cubed (21712117³) is 10235439882260992305613
• The square root of 21712117 is 4659.6262725673
• The cube root of 21712117 is 278.9763515025

Scales and comparisons

• 21,712,117 seconds is equal to 35 weeks, 6 days, 7 hours, 8 minutes, 37 seconds.
• To count from 1 to 21,712,117 would take you about five days!

  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 21712117 cubic inches would be around 23.2 feet tall.

Recreational maths with 21712117

• 21712117 backwards is 71121712
• The number of decimal digits it has is: 8
• The sum of 21712117's digits is 22
• More coming soon!