21338824437

Names of 21338824437

• Cardinal: 21338824437 can be written as Twenty-one billion, three hundred thirty-eight million, eight hundred twenty-four thousand, four hundred thirty-seven.

Scientific notation

• Scientific notation: 2.1338824437 × 10¹⁰

Factors of 21338824437

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 363

Divisors of 21338824437

• Number of divisors d(n): 180
• Complete list of divisors:
  1 3 7 9 19 21 27 49 53 57 63 81 133 147 159 171 189 281 361 371 399 441 477 513 567 843 931 1007 1083 1113 1197 1323 1431 1539 1967 2527 2529 2597 2793 3021 3249 3339 3591 3969 4293 5339 5901 7049 7581 7587 7791 8379 9063 9747 10017 10773 13769 14893 16017 17689 17703 19133 21147 22743 22761 23373 25137 27189 29241 30051 37373 41307 44679 48051 49343 53067 53109 57399 63441 68229 70119 75411 81567 101441 104251 112119 123921 133931 134037 144153 148029 159201 159327 172197 190323 204687 210357 261611 282967 304323 312753 336357 371763 401793 402111 432459 444087 477603 516591 570969 710087 729757 784833 848901 912969 937517 938259 1009071 1115289 1205379 1206333 1332261 1432809 1549773 1980769 2130261 2189271 2354499 2546703 2738907 2812551 2814777 3027213 3616137 3996783 4970609 5376373 5942307 6390783 6567813 7063497 7640109 8216721 8437653 8444331 10848411 13865383 14911827 16129119 17826921 19172349 19703439 21190491 22920327 25312959 37634611 41596149 44735481 48387357 53480763 57517047 59110317 75938877 112903833 124788447 134206443 145162071 160442289 263442277 338711499 374365341 402619329 435486213 790326831 1016134497 1123096023 2370980493 3048403491 7112941479 21338824437
• Sum of all divisors σ(n): 40015483596
• Sum of proper divisors (its aliquot sum) s(n): 18676659159
• 21338824437 is a deficient number, because the sum of its proper divisors (18676659159) is less than itself. Its deficiency is 2662165278

Bases of 21338824437

• Binary: 10011110111111001001001111011110101₂
• Hexadecimal: 0x4F7E49EF5
• Base-36: 9SWL2B9

Squares and roots of 21338824437

• 21338824437 squared (21338824437²) is 455345428353108366969
• 21338824437 cubed (21338824437³) is 9716536153817541485987260821453
• The square root of 21338824437 is 146078.1449670005
• The cube root of 21338824437 is 2773.6830344039

Scales and comparisons

• 21,338,824,437 seconds is equal to 678 years, 26 weeks, 3 days, 3 hours, 13 minutes, 57 seconds.
• To count from 1 to 21,338,824,437 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 21338824437 cubic inches would be around 231.1 feet tall.

Recreational maths with 21338824437

• 21338824437 backwards is 73442883312
• The number of decimal digits it has is: 11
• The sum of 21338824437's digits is 45
• More coming soon!