21508688579133

Names of 21508688579133

• Cardinal: 21508688579133 can be written as Twenty-one trillion, five hundred eight billion, six hundred eighty-eight million, five hundred seventy-nine thousand, one hundred thirty-three.

Scientific notation

• Scientific notation: 2.1508688579133 × 10¹³

Factors of 21508688579133

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 144398

Divisors of 21508688579133

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 19 21 31 57 93 133 217 399 589 651 1767 4123 12369 13267 39801 92869 131071 252073 278607 393213 411277 756219 917497 1233831 1764511 2490349 2752491 2878939 4063201 5293533 7471047 7814263 8636817 12189603 17432443 23442789 28442407 52297329 54699841 77200819 85327221 164099523 231602457 540405733 1621217199 1738918957 5216756871 12172432699 33039460183 36517298097 53906487667 99118380549 161719463001 231276221281 377345413669 693828663843 1024223265673 1132036241007 3072669797019 7169562859711 21508688579133
• Sum of all divisors σ(n): 35616016302080
• Sum of proper divisors (its aliquot sum) s(n): 14107327722947
• 21508688579133 is a deficient number, because the sum of its proper divisors (14107327722947) is less than itself. Its deficiency is 7401360856186

Bases of 21508688579133

• Binary: 100111000111111100001101111100000101000111101₂
• Hexadecimal: 0x138FE1BE0A3D
• Base-36: 7MGYDUBEL

Squares and roots of 21508688579133

• 21508688579133 squared (21508688579133²) is 462623684394126350403031689
• 21508688579133 cubed (21508688579133³) is 9950428756964374917621058540772983145637
• The square root of 21508688579133 is 4637746.0666937123
• The cube root of 21508688579133 is 27810.2340471947

Scales and comparisons

• 21,508,688,579,133 seconds is equal to 683,909 years, 39 weeks, 5 days, 20 hours, 25 minutes, 33 seconds.
• To count from 1 to 21,508,688,579,133 would take you about one million, seven hundred nine thousand, seven hundred seventy-four 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 21508688579133 cubic inches would be around 2317.5 feet tall.

Recreational maths with 21508688579133

• 21508688579133 backwards is 33197588680512
• The number of decimal digits it has is: 14
• The sum of 21508688579133's digits is 66
• More coming soon!