21162997

Names of 21162997

• Cardinal: 21162997 can be written as Twenty-one million, one hundred sixty-two thousand, nine hundred ninety-seven.

Scientific notation

• Scientific notation: 2.1162997 × 10⁷

Factors of 21162997

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21162997

Divisors of 21162997

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21162997
• Sum of all divisors σ(n): 21162998
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21162997 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21162996

Bases of 21162997

• Binary: 1010000101110101111110101₂
• Hexadecimal: 0x142EBF5
• Base-36: CLLH1

Squares and roots of 21162997

• 21162997 squared (21162997²) is 447872442022009
• 21162997 cubed (21162997³) is 9478323146894450400973
• The square root of 21162997 is 4600.3257493355
• The cube root of 21162997 is 276.6043825215

Scales and comparisons

• 21,162,997 seconds is equal to 34 weeks, 6 days, 22 hours, 36 minutes, 37 seconds.
• To count from 1 to 21,162,997 would take you about three 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 21162997 cubic inches would be around 23.1 feet tall.

Recreational maths with 21162997

• 21162997 backwards is 79926112
• The number of decimal digits it has is: 8
• The sum of 21162997's digits is 37
• More coming soon!