20821742003465

Names of 20821742003465

• Cardinal: 20821742003465 can be written as Twenty trillion, eight hundred twenty-one billion, seven hundred forty-two million, three thousand, four hundred sixty-five.

Scientific notation

• Scientific notation: 2.0821742003465 × 10¹³

Factors of 20821742003465

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 232

Divisors of 20821742003465

• Number of divisors d(n): 108
• Complete list of divisors:
  1 5 13 17 65 85 169 197 221 289 845 985 1105 1445 2197 2561 2873 3349 3757 10985 12805 14365 16745 18785 28561 33293 37349 38809 43537 48841 56933 142805 166465 186745 194045 217685 244205 284665 371293 432809 485537 504517 565981 634933 659753 740129 1856465 2164045 2427685 2522585 2829905 3174665 3298765 3700645 5626517 6311981 6558721 7357753 8254129 8576789 9621677 11215801 28132585 31559905 32793605 36788765 41270645 42883945 48108385 56079005 73144721 85263373 95650789 107303677 111498257 125081801 145805413 365723605 426316865 478253945 536518385 557491285 625409005 729027065 1108423849 1243460257 1449477341 1626063413 1895470369 5542119245 6217301285 7247386705 8130317065 9477351845 14409510037 18843205433 21138824369 24641114797 72047550185 94216027165 105694121845 123205573985 244961670629 320334492361 1224808353145 1601672461805 4164348400693 20821742003465
• Sum of all divisors σ(n): 28900872497196
• Sum of proper divisors (its aliquot sum) s(n): 8079130493731
• 20821742003465 is a deficient number, because the sum of its proper divisors (8079130493731) is less than itself. Its deficiency is 12742611509734

Bases of 20821742003465

• Binary: 100101110111111110000100010010010010100001001₂
• Hexadecimal: 0x12EFF0892509
• Base-36: 7DPDJL5AH

Squares and roots of 20821742003465

• 20821742003465 squared (20821742003465²) is 433544940058858672072006225
• 20821742003465 cubed (20821742003465³) is 9027160888813253301649864338073451569625
• The square root of 20821742003465 is 4563084.7026397615
• The cube root of 20821742003465 is 27510.9562969975

Scales and comparisons

• 20,821,742,003,465 seconds is equal to 662,066 years, 51 weeks, 3 days, 7 hours, 11 minutes, 5 seconds.
• To count from 1 to 20,821,742,003,465 would take you about one million, six hundred fifty-five thousand, one hundred sixty-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 20821742003465 cubic inches would be around 2292.6 feet tall.

Recreational maths with 20821742003465

• 20821742003465 backwards is 56430024712802
• The number of decimal digits it has is: 14
• The sum of 20821742003465's digits is 44
• More coming soon!