21225901

Names of 21225901

• Cardinal: 21225901 can be written as Twenty-one million, two hundred twenty-five thousand, nine hundred one.

Scientific notation

• Scientific notation: 2.1225901 × 10⁷

Factors of 21225901

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 573710

Divisors of 21225901

• Number of divisors d(n): 4
• Complete list of divisors:
  1 37 573673 21225901
• Sum of all divisors σ(n): 21799612
• Sum of proper divisors (its aliquot sum) s(n): 573711
• 21225901 is a deficient number, because the sum of its proper divisors (573711) is less than itself. Its deficiency is 20652190

Bases of 21225901

• Binary: 1010000111110000110101101₂
• Hexadecimal: 0x143E1AD
• Base-36: CMY0D

Squares and roots of 21225901

• 21225901 squared (21225901²) is 450538873261801
• 21225901 cubed (21225901³) is 9563093520506535107701
• The square root of 21225901 is 4607.1575835869
• The cube root of 21225901 is 276.8781671731

Scales and comparisons

• 21,225,901 seconds is equal to 35 weeks, 16 hours, 5 minutes, 1 second.
• To count from 1 to 21,225,901 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 21225901 cubic inches would be around 23.1 feet tall.

Recreational maths with 21225901

• 21225901 backwards is 10952212
• The number of decimal digits it has is: 8
• The sum of 21225901's digits is 22
• More coming soon!