20768682816

Names of 20768682816

• Cardinal: 20768682816 can be written as Twenty billion, seven hundred sixty-eight million, six hundred eighty-two thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.0768682816 × 10¹⁰

Factors of 20768682816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 31776

Divisors of 20768682816

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 144 163 168 192 224 252 288 326 336 448 489 504 576 652 672 978 1008 1141 1304 1344 1467 1956 2016 2282 2608 2934 3423 3912 4032 4564 5216 5868 6846 7824 9128 10269 10432 11736 13692 15648 18256 20538 23472 27384 31296 31601 36512 41076 46944 54768 63202 73024 82152 93888 94803 109536 126404 164304 189606 219072 221207 252808 284409 328608 379212 442414 505616 568818 657216 663621 758424 884828 1011232 1137636 1327242 1516848 1769656 1990863 2022464 2275272 2654484 3033696 3539312 3981726 4550544 5150963 5308968 6067392 7078624 7963452 9101088 10301926 10617936 14157248 15452889 15926904 18202176 20603852 21235872 30905778 31853808 36056741 41207704 42471744 46358667 61811556 63707616 72113482 82415408 92717334 108170223 123623112 127415232 144226964 164830816 185434668 216340446 247246224 288453928 324510669 329661632 370869336 432680892 494492448 576907856 649021338 741738672 865361784 988984896 1153815712 1298042676 1483477344 1730723568 2307631424 2596085352 2966954688 3461447136 5192170704 6922894272 10384341408 20768682816
• Sum of all divisors σ(n): 68453471424
• Sum of proper divisors (its aliquot sum) s(n): 47684788608
• 20768682816 is an abundant number, because the sum of its proper divisors (47684788608) is greater than itself. Its abundance is 26916105792

Bases of 20768682816

• Binary: 10011010101111010001111001101000000₂
• Hexadecimal: 0x4D5E8F340
• Base-36: 9JH4Y80

Squares and roots of 20768682816

• 20768682816 squared (20768682816²) is 431338185911613689856
• 20768682816 cubed (20768682816³) is 8958325969627144535342660714496
• The square root of 20768682816 is 144113.4373193561
• The cube root of 20768682816 is 2748.7568073749

Scales and comparisons

• 20,768,682,816 seconds is equal to 660 years, 19 weeks, 5 days, 6 hours, 33 minutes, 36 seconds.
• To count from 1 to 20,768,682,816 would take you about one thousand, three hundred twenty 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 20768682816 cubic inches would be around 229.1 feet tall.

Recreational maths with 20768682816

• 20768682816 backwards is 61828686702
• The number of decimal digits it has is: 11
• The sum of 20768682816's digits is 54
• More coming soon!