21664466555670

Names of 21664466555670

• Cardinal: 21664466555670 can be written as Twenty-one trillion, six hundred sixty-four billion, four hundred sixty-six million, five hundred fifty-five thousand, six hundred seventy.

Scientific notation

• Scientific notation: 2.166446655567 × 10¹³

Factors of 21664466555670

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 376707898

Divisors of 21664466555670

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 71 81 90 135 142 162 213 270 355 405 426 639 710 810 1065 1278 1917 2130 3195 3834 5751 6390 9585 11502 19170 28755 57510 376707817 753415634 1130123451 1883539085 2260246902 3390370353 3767078170 5650617255 6780740706 10171111059 11301234510 16951851765 20342222118 26746255007 30513333177 33903703530 50855555295 53492510014 61026666354 80238765021 101711110590 133731275035 152566665885 160477530042 240716295063 267462550070 305133331770 401193825105 481432590126 722148885189 802387650210 1203581475315 1444297770378 2166446655567 2407162950630 3610744425945 4332893311134 7221488851890 10832233277835 21664466555670
• Sum of all divisors σ(n): 59073813187488
• Sum of proper divisors (its aliquot sum) s(n): 37409346631818
• 21664466555670 is an abundant number, because the sum of its proper divisors (37409346631818) is greater than itself. Its abundance is 15744880076148

Bases of 21664466555670

• Binary: 100111011010000100110110101010101001100010110₂
• Hexadecimal: 0x13B426D55316
• Base-36: 7OGIO0ZDI

Squares and roots of 21664466555670

• 21664466555670 squared (21664466555670²) is 469349111141743953209148900
• 21664466555670 cubed (21664466555670³) is 10168198121263753643138059712715169263000
• The square root of 21664466555670 is 4654510.3454251769
• The cube root of 21664466555670 is 27877.2117100151

Scales and comparisons

• 21,664,466,555,670 seconds is equal to 688,863 years, 1 week, 1 day, 16 hours, 34 minutes, 30 seconds.
• To count from 1 to 21,664,466,555,670 would take you about one million, seven hundred twenty-two thousand, one hundred fifty-seven 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 21664466555670 cubic inches would be around 2323.1 feet tall.

Recreational maths with 21664466555670

• 21664466555670 backwards is 07655566446612
• The number of decimal digits it has is: 14
• The sum of 21664466555670's digits is 63
• More coming soon!