20816638020

Names of 20816638020

• Cardinal: 20816638020 can be written as Twenty billion, eight hundred sixteen million, six hundred thirty-eight thousand and twenty.

Scientific notation

• Scientific notation: 2.081663802 × 10¹⁰

Factors of 20816638020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1040

Divisors of 20816638020

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 149 180 298 447 596 745 881 894 1341 1490 1762 1788 2235 2643 2682 2980 3524 4405 4470 5286 5364 6705 7929 8810 8940 10572 13215 13410 15858 17620 26430 26820 31716 39645 52860 79290 131269 158580 262538 393807 525076 656345 776161 787614 1181421 1312690 1552322 1575228 1969035 2328483 2362842 2625380 3104644 3880805 3938070 4656966 4725684 5907105 6985449 7761610 7876140 9313932 11642415 11814210 13970898 15523220 23284830 23628420 27941796 34927245 46569660 69854490 115647989 139708980 231295978 346943967 462591956 578239945 693887934 1040831901 1156479890 1387775868 1734719835 2081663802 2312959780 3469439670 4163327604 5204159505 6938879340 10408319010 20816638020
• Sum of all divisors σ(n): 63639821700
• Sum of proper divisors (its aliquot sum) s(n): 42823183680
• 20816638020 is an abundant number, because the sum of its proper divisors (42823183680) is greater than itself. Its abundance is 22006545660

Bases of 20816638020

• Binary: 10011011000110001001011000001000100₂
• Hexadecimal: 0x4D8C4B044
• Base-36: 9K9OSP0

Squares and roots of 20816638020

• 20816638020 squared (20816638020²) is 433332418455709520400
• 20816638020 cubed (20816638020³) is 9020524097323672488434605608000
• The square root of 20816638020 is 144279.7214441447
• The cube root of 20816638020 is 2750.8708215147

Scales and comparisons

• 20,816,638,020 seconds is equal to 661 years, 47 weeks, 7 hours, 27 minutes.
• To count from 1 to 20,816,638,020 would take you about one thousand, three hundred twenty-three 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 20816638020 cubic inches would be around 229.2 feet tall.

Recreational maths with 20816638020

• 20816638020 backwards is 02083661802
• 20816638020 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20816638020's digits is 36
• More coming soon!