21371156

Names of 21371156

• Cardinal: 21371156 can be written as Twenty-one million, three hundred seventy-one thousand, one hundred fifty-six.

Scientific notation

• Scientific notation: 2.1371156 × 10⁷

Factors of 21371156

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 5342791

Divisors of 21371156

• Number of divisors d(n): 6
• Complete list of divisors:
  1 2 4 5342789 10685578 21371156
• Sum of all divisors σ(n): 37399530
• Sum of proper divisors (its aliquot sum) s(n): 16028374
• 21371156 is a deficient number, because the sum of its proper divisors (16028374) is less than itself. Its deficiency is 5342782

Bases of 21371156

• Binary: 1010001100001100100010100₂
• Hexadecimal: 0x1461914
• Base-36: CQ238

Squares and roots of 21371156

• 21371156 squared (21371156²) is 456726308776336
• 21371156 cubed (21371156³) is 9760769194163245764416
• The square root of 21371156 is 4622.8947641061
• The cube root of 21371156 is 277.5083177983

Scales and comparisons

• 21,371,156 seconds is equal to 35 weeks, 2 days, 8 hours, 25 minutes, 56 seconds.
• To count from 1 to 21,371,156 would take you about thirty-eight minutes!

  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 21371156 cubic inches would be around 23.1 feet tall.

Recreational maths with 21371156

• 21371156 backwards is 65117312
• The number of decimal digits it has is: 8
• The sum of 21371156's digits is 26
• More coming soon!