20520540

Names of 20520540

• Cardinal: 20520540 can be written as Twenty million, five hundred twenty thousand, five hundred forty.

Scientific notation

• Scientific notation: 2.052054 × 10⁷

Factors of 20520540

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 302

Divisors of 20520540

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 53 54 60 81 90 106 108 135 159 162 180 212 239 265 270 318 324 405 477 478 530 540 636 717 795 810 954 956 1060 1195 1431 1434 1590 1620 1908 2151 2385 2390 2862 2868 3180 3585 4293 4302 4770 4780 5724 6453 7155 7170 8586 8604 9540 10755 12667 12906 14310 14340 17172 19359 21465 21510 25334 25812 28620 32265 38001 38718 42930 43020 50668 63335 64530 76002 77436 85860 96795 114003 126670 129060 152004 190005 193590 228006 253340 342009 380010 387180 456012 570015 684018 760020 1026027 1140030 1368036 1710045 2052054 2280060 3420090 4104108 5130135 6840180 10260270 20520540
• Sum of all divisors σ(n): 65862720
• Sum of proper divisors (its aliquot sum) s(n): 45342180
• 20520540 is an abundant number, because the sum of its proper divisors (45342180) is greater than itself. Its abundance is 24821640

Bases of 20520540

• Binary: 1001110010001111001011100₂
• Hexadecimal: 0x1391E5C
• Base-36: C7TR0

Squares and roots of 20520540

• 20520540 squared (20520540²) is 421092561891600
• 20520540 cubed (20520540³) is 8641046759999053464000
• The square root of 20520540 is 4529.9602647263
• The cube root of 20520540 is 273.7765596299

Scales and comparisons

• 20,520,540 seconds is equal to 33 weeks, 6 days, 12 hours, 9 minutes.
• To count from 1 to 20,520,540 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 20520540 cubic inches would be around 22.8 feet tall.

Recreational maths with 20520540

• 20520540 backwards is 04502502
• 20520540 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20520540's digits is 18
• More coming soon!