21348842757

Names of 21348842757

• Cardinal: 21348842757 can be written as Twenty-one billion, three hundred forty-eight million, eight hundred forty-two thousand, seven hundred fifty-seven.

Scientific notation

• Scientific notation: 2.1348842757 × 10¹⁰

Factors of 21348842757

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3285

Divisors of 21348842757

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 11 19 31 33 57 93 121 209 341 363 589 627 961 1023 1767 2299 2883 3221 3751 6479 6897 9663 10571 11253 18259 19437 31713 35431 54777 61199 71269 99851 106293 116281 183597 200849 213807 299553 348843 389741 602547 673189 1098361 1169223 1897169 2019567 2209339 3095381 3295083 5691507 6628017 7405079 9286143 12081971 20868859 22215237 34049191 36245913 58812239 62606577 102147573 176436717 229557449 374541101 646934629 688672347 1123623303 1940803887 7116280919 21348842757
• Sum of all divisors σ(n): 34042105440
• Sum of proper divisors (its aliquot sum) s(n): 12693262683
• 21348842757 is a deficient number, because the sum of its proper divisors (12693262683) is less than itself. Its deficiency is 8655580074

Bases of 21348842757

• Binary: 10011111000011111010111110100000101₂
• Hexadecimal: 0x4F87D7D05
• Base-36: 9T2JSHX

Squares and roots of 21348842757

• 21348842757 squared (21348842757²) is 455773087063111361049
• 21348842757 cubed (21348842757³) is 9730227968582835382215355572093
• The square root of 21348842757 is 146112.4319043389
• The cube root of 21348842757 is 2774.1170367045

Scales and comparisons

• 21,348,842,757 seconds is equal to 678 years, 43 weeks, 2 hours, 5 minutes, 57 seconds.
• To count from 1 to 21,348,842,757 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 21348842757 cubic inches would be around 231.2 feet tall.

Recreational maths with 21348842757

• 21348842757 backwards is 75724884312
• The number of decimal digits it has is: 11
• The sum of 21348842757's digits is 51
• More coming soon!