18900000000000000

Names of 18900000000000000

• Cardinal: 18900000000000000 can be written as Eighteen quadrillion, nine hundred trillion.

Scientific notation

• Scientific notation: 1.89 × 10¹⁶

Factors of 18900000000000000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 32
• Sum of prime factors: 17

Divisors of 18900000000000000

• Number of divisors d(n): 1800
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 27 28 30 32 35 36 40 42 45 48 50 54 56 60 63 64 70 72 75 80 84 90 96 100 105 108 112 120 125 126 128 135 140 144 150 160 168 175 180 189 192 200 210 216 224 225 240 250 252 256 270 280 288 300 315 320 336 350 360 375 378 384 400 420 432 448 450 480 500 504 512 525 540 560 576 600 625 630 640 672 675 700 720 750 756 768 800 840 864 875 896 900 945 960 1000 1008 1024 1050 1080 1120 1125 1152 1200 1250 1260 1280 1344 1350 1400 1440 1500 1512 1536 1575 1600 1680 1728 1750 1792 1800 1875 1890 1920 2000 2016 2048 2100 2160 2240 2250 2304 2400 2500 2520 2560 2625 2688 2700 2800 2880 3000 3024 3072 3125 3150 3200 3360 3375 3456 3500 3584 3600 3750 3780 3840 4000 4032 4096 4200 4320 4375 4480 4500 4608 4725 4800 5000 5040 5120 5250 5376 5400 5600 5625 5760 6000 6048 6144 6250 6300 6400 6720 6750 6912 7000 7168 7200 7500 7560 7680 7875 8000 8064 8192 8400 8640 8750 8960 9000 9216 9375 9450 9600 10000 10080 10240 10500 10752 10800 11200 11250 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• Sum of all divisors σ(n): 79997558591128640
• Sum of proper divisors (its aliquot sum) s(n): 61097558591128640
• 18900000000000000 is an abundant number, because the sum of its proper divisors (61097558591128640) is greater than itself. Its abundance is 42197558591128640

Bases of 18900000000000000

• Binary: 1000011001001010111001100101010010000010100000000000000₂
• Hexadecimal: 0x4325732A414000
• Base-36: 563HO4WGLC0

Squares and roots of 18900000000000000

• 18900000000000000 squared (18900000000000000²) is 357210000000000000000000000000000
• 18900000000000000 cubed (18900000000000000³) is 6751269000000000000000000000000000000000000000000
• The square root of 18900000000000000 is 137477270.8486752001
• The cube root of 18900000000000000 is 266371.2005227799

Scales and comparisons

• 18,900,000,000,000,000 seconds is equal to 600,961,538 years, 24 weeks.
• To count from 1 to 18,900,000,000,000,000 would take you about one billion, eight hundred two million, eight hundred eighty-four thousand, six 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 18900000000000000 cubic inches would be around 22197.6 feet tall.

Recreational maths with 18900000000000000

• 18900000000000000 backwards is 00000000000000981
• 18900000000000000 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18900000000000000's digits is 18
• More coming soon!