21143706

Names of 21143706

• Cardinal: 21143706 can be written as Twenty-one million, one hundred forty-three thousand, seven hundred six.

Scientific notation

• Scientific notation: 2.1143706 × 10⁷

Factors of 21143706

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 9453

Divisors of 21143706

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 6 389 778 1167 2334 9059 18118 27177 54354 3523951 7047902 10571853 21143706
• Sum of all divisors σ(n): 42400800
• Sum of proper divisors (its aliquot sum) s(n): 21257094
• 21143706 is an abundant number, because the sum of its proper divisors (21257094) is greater than itself. Its abundance is 113388

Bases of 21143706

• Binary: 1010000101010000010011010₂
• Hexadecimal: 0x142A09A
• Base-36: CL6L6

Squares and roots of 21143706

• 21143706 squared (21143706²) is 447056303414436
• 21143706 cubed (21143706³) is 9452427044841630939816
• The square root of 21143706 is 4598.2285719611
• The cube root of 21143706 is 276.5203112957

Scales and comparisons

• 21,143,706 seconds is equal to 34 weeks, 6 days, 17 hours, 15 minutes, 6 seconds.
• To count from 1 to 21,143,706 would take you about three 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 21143706 cubic inches would be around 23 feet tall.

Recreational maths with 21143706

• 21143706 backwards is 60734112
• The number of decimal digits it has is: 8
• The sum of 21143706's digits is 24
• More coming soon!