21029162644656

Names of 21029162644656

• Cardinal: 21029162644656 can be written as Twenty-one trillion, twenty-nine billion, one hundred sixty-two million, six hundred forty-four thousand, six hundred fifty-six.

Scientific notation

• Scientific notation: 2.1029162644656 × 10¹³

Factors of 21029162644656

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 244616371

Divisors of 21029162644656

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 199 216 398 432 597 796 1194 1592 1791 2388 3184 3582 4776 5373 7164 9552 10746 14328 21492 28656 42984 85968 244616167 489232334 733848501 978464668 1467697002 1956929336 2201545503 2935394004 3913858672 4403091006 5870788008 6604636509 8806182012 11741576016 13209273018 17612364024 26418546036 35224728048 48678617233 52837092072 97357234466 105674184144 146035851699 194714468932 292071703398 389428937864 438107555097 584143406796 778857875728 876215110194 1168286813592 1314322665291 1752430220388 2336573627184 2628645330582 3504860440776 5257290661164 7009720881552 10514581322328 21029162644656
• Sum of all divisors σ(n): 60664809664000
• Sum of proper divisors (its aliquot sum) s(n): 39635647019344
• 21029162644656 is an abundant number, because the sum of its proper divisors (39635647019344) is greater than itself. Its abundance is 18606484374688

Bases of 21029162644656

• Binary: 100110010000000111011110001001111010010110000₂
• Hexadecimal: 0x13203BC4F4B0
• Base-36: 7GCNWHCC0

Squares and roots of 21029162644656

• 21029162644656 squared (21029162644656²) is 442225681535395332125358336
• 21029162644656 cubed (21029162644656³) is 9299635782651676129189777982399435452416
• The square root of 21029162644656 is 4585756.4964415631
• The cube root of 21029162644656 is 27602.0068924429

Scales and comparisons

• 21,029,162,644,656 seconds is equal to 668,662 years, 16 weeks, 6 days, 3 hours, 57 minutes, 36 seconds.
• To count from 1 to 21,029,162,644,656 would take you about one million, six hundred seventy-one thousand, six hundred fifty-five 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 21029162644656 cubic inches would be around 2300.2 feet tall.

Recreational maths with 21029162644656

• 21029162644656 backwards is 65644626192012
• 21029162644656 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21029162644656's digits is 54
• More coming soon!