21474836440

Names of 21474836440

• Cardinal: 21474836440 can be written as Twenty-one billion, four hundred seventy-four million, eight hundred thirty-six thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.147483644 × 10¹⁰

Factors of 21474836440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3432

Divisors of 21474836440

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 233 466 932 1103 1165 1864 2089 2206 2330 4178 4412 4660 5515 8356 8824 9320 10445 11030 16712 20890 22060 41780 44120 83560 256999 486737 513998 973474 1027996 1284995 1946948 2055992 2304167 2433685 2569990 3893896 4608334 4867370 5139980 9216668 9734740 10279960 11520835 18433336 19469480 23041670 46083340 92166680 536870911 1073741822 2147483644 2684354555 4294967288 5368709110 10737418220 21474836440
• Sum of all divisors σ(n): 48593001600
• Sum of proper divisors (its aliquot sum) s(n): 27118165160
• 21474836440 is an abundant number, because the sum of its proper divisors (27118165160) is greater than itself. Its abundance is 5643328720

Bases of 21474836440

• Binary: 10011111111111111111111111111011000₂
• Hexadecimal: 0x4FFFFFFD8
• Base-36: 9V5K9UG

Squares and roots of 21474836440

• 21474836440 squared (21474836440²) is 461168600124751873600
• 21474836440 cubed (21474836440³) is 9903520258942810081143553984000
• The square root of 21474836440 is 146542.9508369475
• The cube root of 21474836440 is 2779.5636376675

Scales and comparisons

• 21,474,836,440 seconds is equal to 682 years, 43 weeks, 2 days, 8 hours, 20 minutes, 40 seconds.
• To count from 1 to 21,474,836,440 would take you about one thousand, three hundred sixty-five 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 21474836440 cubic inches would be around 231.6 feet tall.

Recreational maths with 21474836440

• 21474836440 backwards is 04463847412
• The number of decimal digits it has is: 11
• The sum of 21474836440's digits is 43
• More coming soon!