20507942

Names of 20507942

• Cardinal: 20507942 can be written as Twenty million, five hundred seven thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 2.0507942 × 10⁷

Factors of 20507942

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 704

Divisors of 20507942

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 7 13 14 26 91 182 281 401 562 802 1967 2807 3653 3934 5213 5614 7306 10426 25571 36491 51142 72982 112681 225362 788767 1464853 1577534 2929706 10253971 20507942
• Sum of all divisors σ(n): 38090304
• Sum of proper divisors (its aliquot sum) s(n): 17582362
• 20507942 is a deficient number, because the sum of its proper divisors (17582362) is less than itself. Its deficiency is 2925580

Bases of 20507942

• Binary: 1001110001110110100100110₂
• Hexadecimal: 0x138ED26
• Base-36: C7K12

Squares and roots of 20507942

• 20507942 squared (20507942²) is 420575685075364
• 20507942 cubed (20507942³) is 8625141756135830540888
• The square root of 20507942 is 4528.5695313201
• The cube root of 20507942 is 273.7205223919

Scales and comparisons

• 20,507,942 seconds is equal to 33 weeks, 6 days, 8 hours, 39 minutes, 2 seconds.
• To count from 1 to 20,507,942 would take you about fifty 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 20507942 cubic inches would be around 22.8 feet tall.

Recreational maths with 20507942

• 20507942 backwards is 24970502
• The number of decimal digits it has is: 8
• The sum of 20507942's digits is 29
• More coming soon!