21348721205792

Names of 21348721205792

• Cardinal: 21348721205792 can be written as Twenty-one trillion, three hundred forty-eight billion, seven hundred twenty-one million, two hundred five thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 2.1348721205792 × 10¹³

Factors of 21348721205792

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 43010

Divisors of 21348721205792

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 4 8 16 19 32 38 76 152 304 361 608 722 1444 2888 5776 11552 42989 85978 171956 343912 687824 816791 1375648 1633582 3267164 6534328 13068656 15519029 26137312 31038058 62076116 124152232 248304464 496608928 1848054121 3696108242 7392216484 14784432968 29568865936 35113028299 59137731872 70226056598 140452113196 280904226392 561808452784 667147537681 1123616905568 1334295075362 2668590150724 5337180301448 10674360602896 21348721205792
• Sum of all divisors σ(n): 44359874955333
• Sum of proper divisors (its aliquot sum) s(n): 23011153749541
• 21348721205792 is an abundant number, because the sum of its proper divisors (23011153749541) is greater than itself. Its abundance is 1662432543749

Bases of 21348721205792

• Binary: 100110110101010100010111100011010001000100000₂
• Hexadecimal: 0x136AA2F1A220
• Base-36: 7KFGTEC68

Squares and roots of 21348721205792

• 21348721205792 squared (21348721205792²) is 455767897122633026414347264
• 21348721205792 cubed (21348721205792³) is 9730061770221182350966425908110696153088
• The square root of 21348721205792 is 4620467.6392971307
• The cube root of 21348721205792 is 27741.1177181461

Scales and comparisons

• 21,348,721,205,792 seconds is equal to 678,823 years, 15 weeks, 3 days, 14 hours, 56 minutes, 32 seconds.
• To count from 1 to 21,348,721,205,792 would take you about one million, six hundred ninety-seven thousand and 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 21348721205792 cubic inches would be around 2311.8 feet tall.

Recreational maths with 21348721205792

• 21348721205792 backwards is 29750212784312
• The number of decimal digits it has is: 14
• The sum of 21348721205792's digits is 53
• More coming soon!