20131397

Names of 20131397

• Cardinal: 20131397 can be written as Twenty million, one hundred thirty-one thousand, three hundred ninety-seven.

Scientific notation

• Scientific notation: 2.0131397 × 10⁷

Factors of 20131397

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 140803

Divisors of 20131397

• Number of divisors d(n): 8
• Complete list of divisors:
  1 11 13 143 140779 1548569 1830127 20131397
• Sum of all divisors σ(n): 23651040
• Sum of proper divisors (its aliquot sum) s(n): 3519643
• 20131397 is a deficient number, because the sum of its proper divisors (3519643) is less than itself. Its deficiency is 16611754

Bases of 20131397

• Binary: 1001100110010111001000101₂
• Hexadecimal: 0x1332E45
• Base-36: BZHHH

Squares and roots of 20131397

• 20131397 squared (20131397²) is 405273145171609
• 20131397 cubed (20131397³) is 8158714578888293907773
• The square root of 20131397 is 4486.8025363281
• The cube root of 20131397 is 272.0349084739

Scales and comparisons

• 20,131,397 seconds is equal to 33 weeks, 2 days, 3 minutes, 17 seconds.
• To count from 1 to 20,131,397 would take you about forty-nine weeks!

  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 20131397 cubic inches would be around 22.7 feet tall.

Recreational maths with 20131397

• 20131397 backwards is 79313102
• The number of decimal digits it has is: 8
• The sum of 20131397's digits is 26
• More coming soon!