21082829

Names of 21082829

• Cardinal: 21082829 can be written as Twenty-one million, eighty-two thousand, eight hundred twenty-nine.

Scientific notation

• Scientific notation: 2.1082829 × 10⁷

Factors of 21082829

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21082829

Divisors of 21082829

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21082829
• Sum of all divisors σ(n): 21082830
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21082829 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21082828

Bases of 21082829

• Binary: 1010000011011001011001101₂
• Hexadecimal: 0x141B2CD
• Base-36: CJVM5

Squares and roots of 21082829

• 21082829 squared (21082829²) is 444485678643241
• 21082829 cubed (21082829³) is 9371015555784402008789
• The square root of 21082829 is 4591.6041859027
• The cube root of 21082829 is 276.2546702457

Scales and comparisons

• 21,082,829 seconds is equal to 34 weeks, 6 days, 20 minutes, 29 seconds.
• To count from 1 to 21,082,829 would take you about two 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 21082829 cubic inches would be around 23 feet tall.

Recreational maths with 21082829

• 21082829 backwards is 92828012
• The number of decimal digits it has is: 8
• The sum of 21082829's digits is 32
• More coming soon!