21689029

Names of 21689029

• Cardinal: 21689029 can be written as Twenty-one million, six hundred eighty-nine thousand and twenty-nine.

Scientific notation

• Scientific notation: 2.1689029 × 10⁷

Factors of 21689029

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21689029

Divisors of 21689029

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21689029
• Sum of all divisors σ(n): 21689030
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21689029 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21689028

Bases of 21689029

• Binary: 1010010101111001011000101₂
• Hexadecimal: 0x14AF2C5
• Base-36: CWVD1

Squares and roots of 21689029

• 21689029 squared (21689029²) is 470413978962841
• 21689029 cubed (21689029³) is 10202822431730448371389
• The square root of 21689029 is 4657.1481616973
• The cube root of 21689029 is 278.8774314631

Scales and comparisons

• 21,689,029 seconds is equal to 35 weeks, 6 days, 43 minutes, 49 seconds.
• To count from 1 to 21,689,029 would take you about five 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 21689029 cubic inches would be around 23.2 feet tall.

Recreational maths with 21689029

• 21689029 backwards is 92098612
• The number of decimal digits it has is: 8
• The sum of 21689029's digits is 37
• More coming soon!