21347333644

Names of 21347333644

• Cardinal: 21347333644 can be written as Twenty-one billion, three hundred forty-seven million, three hundred thirty-three thousand, six hundred forty-four.

Scientific notation

• Scientific notation: 2.1347333644 × 10¹⁰

Factors of 21347333644

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 42397

Divisors of 21347333644

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 13 14 19 26 28 38 52 73 76 91 133 146 182 247 266 292 364 494 511 532 949 988 1022 1387 1729 1898 2044 2774 3458 3796 5548 6643 6916 9709 13286 18031 19418 26572 36062 38836 42283 72124 84566 126217 169132 252434 295981 504868 549679 591962 803377 1099358 1183924 1606754 2198716 3086659 3213508 3847753 5623639 6173318 7695506 10443901 11247278 12346636 15391012 20887802 21606613 22494556 40126567 41775604 43213226 58646521 73107307 80253134 86426452 117293042 146214614 160506268 234586084 280885969 292429228 410525647 561771938 762404773 821051294 1123543876 1524809546 1642102588 3049619092 5336833411 10673666822 21347333644
• Sum of all divisors σ(n): 49062970880
• Sum of proper divisors (its aliquot sum) s(n): 27715637236
• 21347333644 is an abundant number, because the sum of its proper divisors (27715637236) is greater than itself. Its abundance is 6368303592

Bases of 21347333644

• Binary: 10011111000011001100111011000001100₂
• Hexadecimal: 0x4F866760C
• Base-36: 9T1NG24

Squares and roots of 21347333644

• 21347333644 squared (21347333644²) is 455708653708254318736
• 21347333644 cubed (21347333644³) is 9728164675168162778861312353984
• The square root of 21347333644 is 146107.2675947367
• The cube root of 21347333644 is 2774.0516693093

Scales and comparisons

• 21,347,333,644 seconds is equal to 678 years, 40 weeks, 3 days, 14 hours, 54 minutes, 4 seconds.
• To count from 1 to 21,347,333,644 would take you about one thousand, three hundred fifty-seven 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 21347333644 cubic inches would be around 231.2 feet tall.

Recreational maths with 21347333644

• 21347333644 backwards is 44633374312
• The number of decimal digits it has is: 11
• The sum of 21347333644's digits is 40
• More coming soon!