21820111922531

Names of 21820111922531

• Cardinal: 21820111922531 can be written as Twenty-one trillion, eight hundred twenty billion, one hundred eleven million, nine hundred twenty-two thousand, five hundred thirty-one.

Scientific notation

• Scientific notation: 2.1820111922531 × 10¹³

Factors of 21820111922531

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1998

Divisors of 21820111922531

• Number of divisors d(n): 90
• Complete list of divisors:
  1 13 17 37 169 221 289 481 629 1369 1931 2197 2873 3757 6253 8177 10693 17797 23273 25103 28561 32827 37349 48841 71447 81289 106301 139009 231361 302549 326339 395641 426751 485537 558059 634933 928811 1056757 1214599 1381913 1807117 2643539 3007693 3933137 4242407 5143333 5547763 7254767 8254129 12074543 15789787 17964869 20648183 23492521 34366007 39100009 44940163 51130781 55151291 66863329 72120919 94311971 156969059 205267231 268426379 305402773 446758091 584222119 664700153 763982771 869223277 937571947 1226055623 2040597767 2668474003 3489542927 5807855183 7594887547 9931776023 11299902601 15938723099 34690162039 45364058051 75502117379 98733538111 129113088299 589732754663 1283535995443 1678470147887 21820111922531
• Sum of all divisors σ(n): 25821052505388
• Sum of proper divisors (its aliquot sum) s(n): 4000940582857
• 21820111922531 is a deficient number, because the sum of its proper divisors (4000940582857) is less than itself. Its deficiency is 17819171339674

Bases of 21820111922531

• Binary: 100111101100001100100000001010010010101100011₂
• Hexadecimal: 0x13D864052563
• Base-36: 7QG0R9D2B

Squares and roots of 21820111922531

• 21820111922531 squared (21820111922531²) is 476117284311779492945445961
• 21820111922531 cubed (21820111922531³) is 10388932431934541557023595219976878847291
• The square root of 21820111922531 is 4671200.2657273217
• The cube root of 21820111922531 is 27943.8124611383

Scales and comparisons

• 21,820,111,922,531 seconds is equal to 693,812 years, 3 weeks, 2 days, 16 hours, 42 minutes, 11 seconds.
• To count from 1 to 21,820,111,922,531 would take you about one million, seven hundred thirty-four thousand, five hundred thirty 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 21820111922531 cubic inches would be around 2328.7 feet tall.

Recreational maths with 21820111922531

• 21820111922531 backwards is 13522911102812
• The number of decimal digits it has is: 14
• The sum of 21820111922531's digits is 38
• More coming soon!