21242734

Names of 21242734

• Cardinal: 21242734 can be written as Twenty-one million, two hundred forty-two thousand, seven hundred thirty-four.

Scientific notation

• Scientific notation: 2.1242734 × 10⁷

Factors of 21242734

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 63770

Divisors of 21242734

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 167 334 63601 127202 10621367 21242734
• Sum of all divisors σ(n): 32055408
• Sum of proper divisors (its aliquot sum) s(n): 10812674
• 21242734 is a deficient number, because the sum of its proper divisors (10812674) is less than itself. Its deficiency is 10430060

Bases of 21242734

• Binary: 1010001000010001101101110₂
• Hexadecimal: 0x144236E
• Base-36: CNAZY

Squares and roots of 21242734

• 21242734 squared (21242734²) is 451253747794756
• 21242734 cubed (21242734³) is 9585863330907088302904
• The square root of 21242734 is 4608.9840529123
• The cube root of 21242734 is 276.9513397041

Scales and comparisons

• 21,242,734 seconds is equal to 35 weeks, 20 hours, 45 minutes, 34 seconds.
• To count from 1 to 21,242,734 would take you about four 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 21242734 cubic inches would be around 23.1 feet tall.

Recreational maths with 21242734

• 21242734 backwards is 43724212
• The number of decimal digits it has is: 8
• The sum of 21242734's digits is 25
• More coming soon!