21473492

Names of 21473492

• Cardinal: 21473492 can be written as Twenty-one million, four hundred seventy-three thousand, four hundred ninety-two.

Scientific notation

• Scientific notation: 2.1473492 × 10⁷

Factors of 21473492

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 5368375

Divisors of 21473492

• Number of divisors d(n): 6
• Complete list of divisors:
  1 2 4 5368373 10736746 21473492
• Sum of all divisors σ(n): 37578618
• Sum of proper divisors (its aliquot sum) s(n): 16105126
• 21473492 is a deficient number, because the sum of its proper divisors (16105126) is less than itself. Its deficiency is 5368366

Bases of 21473492

• Binary: 1010001111010100011010100₂
• Hexadecimal: 0x147A8D4
• Base-36: CS91W

Squares and roots of 21473492

• 21473492 squared (21473492²) is 461110858674064
• 21473492 cubed (21473492³) is 9901660334850643911488
• The square root of 21473492 is 4633.9499349907
• The cube root of 21473492 is 277.9505631259

Scales and comparisons

• 21,473,492 seconds is equal to 35 weeks, 3 days, 12 hours, 51 minutes, 32 seconds.
• To count from 1 to 21,473,492 would take you about nineteen 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 21473492 cubic inches would be around 23.2 feet tall.

Recreational maths with 21473492

• 21473492 backwards is 29437412
• The number of decimal digits it has is: 8
• The sum of 21473492's digits is 32
• More coming soon!