21378412419

Names of 21378412419

• Cardinal: 21378412419 can be written as Twenty-one billion, three hundred seventy-eight million, four hundred twelve thousand, four hundred nineteen.

Scientific notation

• Scientific notation: 2.1378412419 × 10¹⁰

Factors of 21378412419

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 275

Divisors of 21378412419

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 13 19 21 39 49 57 91 133 147 233 247 273 343 361 399 637 699 741 931 1029 1083 1631 1729 1911 2527 2793 3029 4427 4459 4693 4893 5187 6517 6859 7581 9087 11417 12103 13281 13377 14079 17689 19551 20577 21203 30989 32851 34251 36309 48013 53067 57551 63609 79919 84113 84721 89167 92967 98553 123823 144039 148421 172653 216923 229957 239757 252339 254163 267501 336091 371469 402857 445263 588791 624169 650769 689871 1008273 1038947 1093469 1208571 1518461 1598147 1609699 1766373 1872507 2352637 2819999 3116841 3280407 4121537 4369183 4555383 4794441 4829097 7057911 7654283 8459997 11187029 12364611 13107549 19739993 20775911 22962849 28850759 30584281 33561087 53579981 59219979 62327733 78309203 86552277 91752843 145431377 160739943 234927609 375059867 436294131 548164421 1018019639 1125179601 1644493263 3054058917 7126137473 21378412419
• Sum of all divisors σ(n): 37949184000
• Sum of proper divisors (its aliquot sum) s(n): 16570771581
• 21378412419 is a deficient number, because the sum of its proper divisors (16570771581) is less than itself. Its deficiency is 4807640838

Bases of 21378412419

• Binary: 10011111010010000001010111110000011₂
• Hexadecimal: 0x4FA40AF83
• Base-36: 9TK5KLF

Squares and roots of 21378412419

• 21378412419 squared (21378412419²) is 457036517556853431561
• 21378412419 cubed (21378412419³) is 9770715162873946939846448956059
• The square root of 21378412419 is 146213.5849331381
• The cube root of 21378412419 is 2775.3972288107

Scales and comparisons

• 21,378,412,419 seconds is equal to 679 years, 39 weeks, 6 days, 7 hours, 53 minutes, 39 seconds.
• To count from 1 to 21,378,412,419 would take you about one thousand, three hundred fifty-nine 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 21378412419 cubic inches would be around 231.3 feet tall.

Recreational maths with 21378412419

• 21378412419 backwards is 91421487312
• The number of decimal digits it has is: 11
• The sum of 21378412419's digits is 42
• More coming soon!