21084921675

Names of 21084921675

• Cardinal: 21084921675 can be written as Twenty-one billion, eighty-four million, nine hundred twenty-one thousand, six hundred seventy-five.

Scientific notation

• Scientific notation: 2.1084921675 × 10¹⁰

Factors of 21084921675

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 31

Divisors of 21084921675

• Number of divisors d(n): 126
• Complete list of divisors:
  1 3 5 9 15 23 25 27 45 69 75 81 115 135 207 225 243 345 405 529 575 621 675 729 1035 1215 1587 1725 1863 2025 2187 2645 3105 3645 4761 5175 5589 6075 6561 7935 9315 10935 13225 14283 15525 16767 18225 19683 23805 27945 32805 39675 42849 46575 50301 54675 59049 71415 83835 98415 119025 128547 139725 150903 164025 177147 214245 251505 295245 357075 385641 419175 452709 492075 531441 642735 754515 885735 1071225 1156923 1257525 1358127 1476225 1594323 1928205 2263545 2657205 3213675 3470769 3772575 4074381 4428675 5784615 6790635 7971615 9641025 10412307 11317725 12223143 13286025 17353845 20371905 28923075 31236921 33953175 36669429 39858075 52061535 61115715 86769225 93710763 101859525 156184605 183347145 260307675 281132289 305578575 468553815 780923025 843396867 916735725 1405661445 2342769075 4216984335 7028307225 21084921675
• Sum of all divisors σ(n): 40997210212
• Sum of proper divisors (its aliquot sum) s(n): 19912288537
• 21084921675 is a deficient number, because the sum of its proper divisors (19912288537) is less than itself. Its deficiency is 1172633138

Bases of 21084921675

• Binary: 10011101000110000100101111101001011₂
• Hexadecimal: 0x4E8C25F4B
• Base-36: 9OPF1OR

Squares and roots of 21084921675

• 21084921675 squared (21084921675²) is 444573922040884805625
• 21084921675 cubed (21084921675³) is 9373806324979612274300724421875
• The square root of 21084921675 is 145206.4794525369
• The cube root of 21084921675 is 2762.6381026075

Scales and comparisons

• 21,084,921,675 seconds is equal to 670 years, 22 weeks, 4 days, 10 hours, 41 minutes, 15 seconds.
• To count from 1 to 21,084,921,675 would take you about one thousand, three hundred forty 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 21084921675 cubic inches would be around 230.2 feet tall.

Recreational maths with 21084921675

• 21084921675 backwards is 57612948012
• 21084921675 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21084921675's digits is 45
• More coming soon!