18947640320

Names of 18947640320

• Cardinal: 18947640320 can be written as Eighteen billion, nine hundred forty-seven million, six hundred forty thousand, three hundred twenty.

Scientific notation

• Scientific notation: 1.894764032 × 10¹⁰

Factors of 18947640320

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 528687

Divisors of 18947640320

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 256 280 320 448 512 560 640 896 1024 1120 1280 1792 2240 2560 3584 4480 5120 7168 8960 17920 35840 528673 1057346 2114692 2643365 3700711 4229384 5286730 7401422 8458768 10573460 14802844 16917536 18503555 21146920 29605688 33835072 37007110 42293840 59211376 67670144 74014220 84587680 118422752 135340288 148028440 169175360 236845504 270680576 296056880 338350720 473691008 541361152 592113760 676701440 947382016 1184227520 1353402880 1894764032 2368455040 2706805760 3789528064 4736910080 9473820160 18947640320
• Sum of all divisors σ(n): 51945392544
• Sum of proper divisors (its aliquot sum) s(n): 32997752224
• 18947640320 is an abundant number, because the sum of its proper divisors (32997752224) is greater than itself. Its abundance is 14050111904

Bases of 18947640320

• Binary: 10001101001010111100000110000000000₂
• Hexadecimal: 0x4695E0C00
• Base-36: 8PCXOU8

Squares and roots of 18947640320

• 18947640320 squared (18947640320²) is 359013073696089702400
• 18947640320 cubed (18947640320³) is 6802450590571160671531040768000
• The square root of 18947640320 is 137650.4279688225
• The cube root of 18947640320 is 2665.9482242353

Scales and comparisons

• 18,947,640,320 seconds is equal to 602 years, 24 weeks, 5 days, 9 hours, 25 minutes, 20 seconds.
• To count from 1 to 18,947,640,320 would take you about one thousand, two hundred four 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 18947640320 cubic inches would be around 222.2 feet tall.

Recreational maths with 18947640320

• 18947640320 backwards is 02304674981
• The number of decimal digits it has is: 11
• The sum of 18947640320's digits is 44
• More coming soon!