218815309120

Names of 218815309120

• Cardinal: 218815309120 can be written as Two hundred eighteen billion, eight hundred fifteen million, three hundred nine thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.1881530912 × 10¹¹

Factors of 218815309120

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 888

Divisors of 218815309120

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 160 320 881 1762 3524 4405 7048 8810 14096 17620 28192 35240 56384 70480 140960 281920 776161 1552322 3104644 3880805 6209288 7761610 12418576 15523220 24837152 31046440 49674304 62092880 124185760 248371520 683797841 1367595682 2735191364 3418989205 5470382728 6837978410 10940765456 13675956820 21881530912 27351913640 43763061824 54703827280 109407654560 218815309120
• Sum of all divisors σ(n): 521646061608
• Sum of proper divisors (its aliquot sum) s(n): 302830752488
• 218815309120 is an abundant number, because the sum of its proper divisors (302830752488) is greater than itself. Its abundance is 84015443368

Bases of 218815309120

• Binary: 11001011110010011010001010010101000000₂
• Hexadecimal: 0x32F268A540
• Base-36: 2SISZH34

Squares and roots of 218815309120

• 218815309120 squared (218815309120²) is 47880139505281155174400
• 218815309120 cubed (218815309120³) is 10476907526556819841997023510528000
• The square root of 218815309120 is 467776.9865224239
• The cube root of 218815309120 is 6025.9552360885

Scales and comparisons

• 218,815,309,120 seconds is equal to 6,957 years, 33 weeks, 5 days, 14 hours, 18 minutes, 40 seconds.
• To count from 1 to 218,815,309,120 would take you about thirteen thousand, nine hundred fifteen years!

  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 218815309120 cubic inches would be around 502.2 feet tall.

Recreational maths with 218815309120

• 218815309120 backwards is 021903518812
• 218815309120 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 218815309120's digits is 40
• More coming soon!