13820420

Names of 13820420

• Cardinal: 13820420 can be written as Thirteen million, eight hundred twenty thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.382042 × 10⁷

Factors of 13820420

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 22329

Divisors of 13820420

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 4 5 10 20 31 62 124 155 310 620 22291 44582 89164 111455 222910 445820 691021 1382042 2764084 3455105 6910210 13820420
• Sum of all divisors σ(n): 29960448
• Sum of proper divisors (its aliquot sum) s(n): 16140028
• 13820420 is an abundant number, because the sum of its proper divisors (16140028) is greater than itself. Its abundance is 2319608

Bases of 13820420

• Binary: 110100101110001000000100₂
• Hexadecimal: 0xD2E204
• Base-36: 887WK

Squares and roots of 13820420

• 13820420 squared (13820420²) is 191004008976400
• 13820420 cubed (13820420³) is 2639755625737618088000
• The square root of 13820420 is 3717.5825478393
• The cube root of 13820420 is 239.9792806187

Scales and comparisons

• 13,820,420 seconds is equal to 22 weeks, 5 days, 23 hours, 20 seconds.
• To count from 1 to 13,820,420 would take you about thirty-four 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 13820420 cubic inches would be around 20 feet tall.

Recreational maths with 13820420

• 13820420 backwards is 02402831
• 13820420 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13820420's digits is 20
• More coming soon!