21318679284140168

Names of 21318679284140168

• Cardinal: 21318679284140168 can be written as Twenty-one quadrillion, three hundred eighteen trillion, six hundred seventy-nine billion, two hundred eighty-four million, one hundred forty thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1318679284140168 × 10¹⁶

Factors of 21318679284140168

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1053520

Divisors of 21318679284140168

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 4 7 8 14 28 49 56 98 196 343 392 686 1372 2401 2744 4802 9604 19208 1053511 2107022 4214044 7374577 8428088 14749154 29498308 51622039 58996616 103244078 206488156 361354273 412976312 722708546 1445417092 2529479911 2890834184 5058959822 10117919644 20235839288 1109885427121 2219770854242 4439541708484 7769197989847 8879083416968 15538395979694 31076791959388 54384385928929 62153583918776 108768771857858 217537543715716 380690701502503 435075087431432 761381403005006 1522762806010012 2664834910517521 3045525612020024 5329669821035042 10659339642070084 21318679284140168
• Sum of all divisors σ(n): 46631880483795495
• Sum of proper divisors (its aliquot sum) s(n): 25313201199655327
• 21318679284140168 is an abundant number, because the sum of its proper divisors (25313201199655327) is greater than itself. Its abundance is 3994521915515159

Bases of 21318679284140168

• Binary: 1001011101111010011100111010001110011111100100010001000₂
• Hexadecimal: 0x4BBD39D1CFC888
• Base-36: 5TWUA25SF48

Squares and roots of 21318679284140168

• 21318679284140168 squared (21318679284140168²) is 454486086420027145931779071068224
• 21318679284140168 cubed (21318679284140168³) is 9689043115492570844454785724637876348305106821632
• The square root of 21318679284140168 is 146009175.3423056907
• The cube root of 21318679284140168 is 277280.9917554571

Scales and comparisons

• 21,318,679,284,140,168 seconds is equal to 677,868,058 years, 12 weeks, 1 hour, 36 minutes, 8 seconds.
• To count from 1 to 21,318,679,284,140,168 would take you about two billion, thirty-three million, six hundred four thousand, one hundred seventy-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 21318679284140168 cubic inches would be around 23106.7 feet tall.

Recreational maths with 21318679284140168

• 21318679284140168 backwards is 86104148297681312
• The number of decimal digits it has is: 17
• The sum of 21318679284140168's digits is 71
• More coming soon!