21401794

Names of 21401794

• Cardinal: 21401794 can be written as Twenty-one million, four hundred one thousand, seven hundred ninety-four.

Scientific notation

• Scientific notation: 2.1401794 × 10⁷

Factors of 21401794

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10700899

Divisors of 21401794

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 10700897 21401794
• Sum of all divisors σ(n): 32102694
• Sum of proper divisors (its aliquot sum) s(n): 10700900
• 21401794 is a deficient number, because the sum of its proper divisors (10700900) is less than itself. Its deficiency is 10700894

Bases of 21401794

• Binary: 1010001101001000011000010₂
• Hexadecimal: 0x14690C2
• Base-36: CQPQA

Squares and roots of 21401794

• 21401794 squared (21401794²) is 458036786418436
• 21401794 cubed (21401794³) is 9802808947349365074184
• The square root of 21401794 is 4626.2073018835
• The cube root of 21401794 is 277.6408677967

Scales and comparisons

• 21,401,794 seconds is equal to 35 weeks, 2 days, 16 hours, 56 minutes, 34 seconds.
• To count from 1 to 21,401,794 would take you about thirteen hours!

  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 21401794 cubic inches would be around 23.1 feet tall.

Recreational maths with 21401794

• 21401794 backwards is 49710412
• The number of decimal digits it has is: 8
• The sum of 21401794's digits is 28
• More coming soon!