21138098

Names of 21138098

• Cardinal: 21138098 can be written as Twenty-one million, one hundred thirty-eight thousand and ninety-eight.

Scientific notation

• Scientific notation: 2.1138098 × 10⁷

Factors of 21138098

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 157816

Divisors of 21138098

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 67 134 157747 315494 10569049 21138098
• Sum of all divisors σ(n): 32180592
• Sum of proper divisors (its aliquot sum) s(n): 11042494
• 21138098 is a deficient number, because the sum of its proper divisors (11042494) is less than itself. Its deficiency is 10095604

Bases of 21138098

• Binary: 1010000101000101010110010₂
• Hexadecimal: 0x1428AB2
• Base-36: CL29E

Squares and roots of 21138098

• 21138098 squared (21138098²) is 446819187057604
• 21138098 cubed (21138098³) is 9444907764303964997192
• The square root of 21138098 is 4597.6187314739
• The cube root of 21138098 is 276.4958617341

Scales and comparisons

• 21,138,098 seconds is equal to 34 weeks, 6 days, 15 hours, 41 minutes, 38 seconds.
• To count from 1 to 21,138,098 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 21138098 cubic inches would be around 23 feet tall.

Recreational maths with 21138098

• 21138098 backwards is 89083112
• The number of decimal digits it has is: 8
• The sum of 21138098's digits is 32
• More coming soon!