20286400

Names of 20286400

• Cardinal: 20286400 can be written as Twenty million, two hundred eighty-six thousand, four hundred.

Scientific notation

• Scientific notation: 2.02864 × 10⁷

Factors of 20286400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 447

Divisors of 20286400

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 31 32 40 50 62 64 80 100 124 155 160 200 248 310 320 400 409 496 620 775 800 818 992 1240 1550 1600 1636 1984 2045 2480 3100 3272 4090 4960 6200 6544 8180 9920 10225 12400 12679 13088 16360 20450 24800 25358 26176 32720 40900 49600 50716 63395 65440 81800 101432 126790 130880 163600 202864 253580 316975 327200 405728 507160 633950 654400 811456 1014320 1267900 2028640 2535800 4057280 5071600 10143200 20286400
• Sum of all divisors σ(n): 51653440
• Sum of proper divisors (its aliquot sum) s(n): 31367040
• 20286400 is an abundant number, because the sum of its proper divisors (31367040) is greater than itself. Its abundance is 11080640

Bases of 20286400

• Binary: 1001101011000101111000000₂
• Hexadecimal: 0x1358BC0
• Base-36: C2T34

Squares and roots of 20286400

• 20286400 squared (20286400²) is 411538024960000
• 20286400 cubed (20286400³) is 8348624989548544000000
• The square root of 20286400 is 4504.0426285727
• The cube root of 20286400 is 272.7313076845

Scales and comparisons

• 20,286,400 seconds is equal to 33 weeks, 3 days, 19 hours, 6 minutes, 40 seconds.
• To count from 1 to 20,286,400 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 20286400 cubic inches would be around 22.7 feet tall.

Recreational maths with 20286400

• 20286400 backwards is 00468202
• The number of decimal digits it has is: 8
• The sum of 20286400's digits is 22
• More coming soon!