21357912675

Names of 21357912675

• Cardinal: 21357912675 can be written as Twenty-one billion, three hundred fifty-seven million, nine hundred twelve thousand, six hundred seventy-five.

Scientific notation

• Scientific notation: 2.1357912675 × 10¹⁰

Factors of 21357912675

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 129

Divisors of 21357912675

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 11 15 25 31 33 55 75 79 93 121 155 165 237 275 341 363 395 465 605 775 825 869 961 1023 1185 1705 1815 1975 2325 2449 2607 2883 3025 3751 4345 4805 5115 5925 7347 8525 9075 9559 10571 11253 12245 13035 14415 18755 21725 24025 25575 26939 28677 29791 31713 36735 47795 52855 56265 61225 65175 72075 75919 80817 89373 93775 116281 134695 143385 148955 158565 183675 227757 238975 264275 281325 296329 327701 348843 379595 404085 446865 581405 673475 716925 744775 792825 835109 888987 983103 1138785 1481645 1638505 1744215 1897975 2020425 2234325 2353489 2505327 2907025 3604711 4175545 4444935 4915515 5693925 7060467 7408225 8192525 8721075 9186199 10814133 11767445 12526635 18023555 20877725 22224675 24577575 25888379 27558597 35302335 45930995 54070665 58837225 62633175 77665137 90117775 129441895 137792985 176511675 229654975 270353325 284772169 388325685 647209475 688964925 854316507 1423860845 1941628425 4271582535 7119304225 21357912675
• Sum of all divisors σ(n): 40615178240
• Sum of proper divisors (its aliquot sum) s(n): 19257265565
• 21357912675 is a deficient number, because the sum of its proper divisors (19257265565) is less than itself. Its deficiency is 2100647110

Bases of 21357912675

• Binary: 10011111001000001111110001001100011₂
• Hexadecimal: 0x4F907E263
• Base-36: 9T7Y6W3

Squares and roots of 21357912675

• 21357912675 squared (21357912675²) is 456160433832925655625
• 21357912675 cubed (21357912675³) is 9742634711593741692605872546875
• The square root of 21357912675 is 146143.4660701599
• The cube root of 21357912675 is 2774.5098363207

Scales and comparisons

• 21,357,912,675 seconds is equal to 679 years, 6 weeks, 1 hour, 31 minutes, 15 seconds.
• To count from 1 to 21,357,912,675 would take you about one thousand, three hundred fifty-eight 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 21357912675 cubic inches would be around 231.2 feet tall.

Recreational maths with 21357912675

• 21357912675 backwards is 57621975312
• The number of decimal digits it has is: 11
• The sum of 21357912675's digits is 48
• More coming soon!