21378763325439

Names of 21378763325439

• Cardinal: 21378763325439 can be written as Twenty-one trillion, three hundred seventy-eight billion, seven hundred sixty-three million, three hundred twenty-five thousand, four hundred thirty-nine.

Scientific notation

• Scientific notation: 2.1378763325439 × 10¹³

Factors of 21378763325439

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 74389

Divisors of 21378763325439

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 13 39 117 139 417 1251 1807 5421 16263 29173 45061 87519 135183 262557 379249 405549 585793 1137747 1757379 3413241 4055047 5272137 6263479 12165141 18790437 36495423 52715611 56371311 81425227 158146833 244275681 474440499 732827043 1314564553 3943693659 11831080977 17089339189 51268017567 153804052701 182724472867 548173418601 1644520255803 2375418147271 7126254441813 21378763325439
• Sum of all divisors σ(n): 33496996318240
• Sum of proper divisors (its aliquot sum) s(n): 12118232992801
• 21378763325439 is a deficient number, because the sum of its proper divisors (12118232992801) is less than itself. Its deficiency is 9260530332638

Bases of 21378763325439

• Binary: 100110111000110100001100101111111111111111111₂
• Hexadecimal: 0x1371A197FFFF
• Base-36: 7KT9NP81R

Squares and roots of 21378763325439

• 21378763325439 squared (21378763325439²) is 457051521325135609824542721
• 21378763325439 cubed (21378763325439³) is 9771196301941910193830178141323481579519
• The square root of 21378763325439 is 4623717.4789814959
• The cube root of 21378763325439 is 27754.1241390187

Scales and comparisons

• 21,378,763,325,439 seconds is equal to 679,778 years, 28 weeks, 2 days, 8 hours, 10 minutes, 39 seconds.
• To count from 1 to 21,378,763,325,439 would take you about one million, six hundred ninety-nine thousand, four hundred forty-six 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 21378763325439 cubic inches would be around 2312.8 feet tall.

Recreational maths with 21378763325439

• 21378763325439 backwards is 93452336787312
• The number of decimal digits it has is: 14
• The sum of 21378763325439's digits is 63
• More coming soon!