20983900

Names of 20983900

• Cardinal: 20983900 can be written as Twenty million, nine hundred eighty-three thousand, nine hundred.

Scientific notation

• Scientific notation: 2.09839 × 10⁷

Factors of 20983900

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1012

Divisors of 20983900

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 7 10 14 20 25 28 31 35 50 62 70 100 124 140 155 175 217 310 350 434 620 700 775 868 967 1085 1550 1934 2170 3100 3868 4340 4835 5425 6769 9670 10850 13538 19340 21700 24175 27076 29977 33845 48350 59954 67690 96700 119908 135380 149885 169225 209839 299770 338450 419678 599540 676900 749425 839356 1049195 1498850 2098390 2997700 4196780 5245975 10491950 20983900
• Sum of all divisors σ(n): 53774336
• Sum of proper divisors (its aliquot sum) s(n): 32790436
• 20983900 is an abundant number, because the sum of its proper divisors (32790436) is greater than itself. Its abundance is 11806536

Bases of 20983900

• Binary: 1010000000011000001011100₂
• Hexadecimal: 0x140305C
• Base-36: CHRA4

Squares and roots of 20983900

• 20983900 squared (20983900²) is 440324059210000
• 20983900 cubed (20983900³) is 9239716026056719000000
• The square root of 20983900 is 4580.8187041183
• The cube root of 20983900 is 275.8218937723

Scales and comparisons

• 20,983,900 seconds is equal to 34 weeks, 4 days, 20 hours, 51 minutes, 40 seconds.
• To count from 1 to 20,983,900 would take you about seven hours!

  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 20983900 cubic inches would be around 23 feet tall.

Recreational maths with 20983900

• 20983900 backwards is 00938902
• 20983900 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20983900's digits is 31
• More coming soon!