20012001800

Names of 20012001800

• Cardinal: 20012001800 can be written as Twenty billion, twelve million, one thousand, eight hundred.

Scientific notation

• Scientific notation: 2.00120018 × 10¹⁰

Factors of 20012001800

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1443

Divisors of 20012001800

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 25 28 35 40 49 50 56 70 98 100 140 175 196 200 245 280 350 392 490 700 980 1225 1400 1429 1960 2450 2858 4900 5716 7145 9800 10003 11432 14290 20006 28580 35725 40012 50015 57160 70021 71450 80024 100030 140042 142900 200060 250075 280084 285800 350105 400120 500150 560168 700210 1000300 1400420 1750525 2000600 2042041 2800840 3501050 4084082 7002100 8168164 10210205 14004200 14294287 16336328 20420410 28588574 40840820 51051025 57177148 71471435 81681640 100060009 102102050 114354296 142942870 200120018 204204100 285885740 357357175 400240036 408408200 500300045 571771480 714714350 800480072 1000600090 1429428700 2001200180 2501500225 2858857400 4002400360 5003000450 10006000900 20012001800
• Sum of all divisors σ(n): 54162198855
• Sum of proper divisors (its aliquot sum) s(n): 34150197055
• 20012001800 is an abundant number, because the sum of its proper divisors (34150197055) is greater than itself. Its abundance is 14138195255

Bases of 20012001800

• Binary: 10010101000110011101110101000001000₂
• Hexadecimal: 0x4A8CEEA08
• Base-36: 96YMNEW

Squares and roots of 20012001800

• 20012001800 squared (20012001800²) is 400480216043203240000
• 20012001800 cubed (20012001800³) is 8014410804320972116645832000000
• The square root of 20012001800 is 141463.7826441807
• The cube root of 20012001800 is 2714.9604729777

Scales and comparisons

• 20,012,001,800 seconds is equal to 636 years, 16 weeks, 4 days, 9 hours, 23 minutes, 20 seconds.
• To count from 1 to 20,012,001,800 would take you about one thousand, two hundred seventy-two 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 20012001800 cubic inches would be around 226.2 feet tall.

Recreational maths with 20012001800

• 20012001800 backwards is 00810021002
• 20012001800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20012001800's digits is 14
• More coming soon!