21215898823446

Names of 21215898823446

• Cardinal: 21215898823446 can be written as Twenty-one trillion, two hundred fifteen billion, eight hundred ninety-eight million, eight hundred twenty-three thousand, four hundred forty-six.

Scientific notation

• Scientific notation: 2.1215898823446 × 10¹³

Factors of 21215898823446

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 36893

Divisors of 21215898823446

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 17 18 27 34 51 54 102 153 289 306 459 578 867 918 1734 2601 5202 7803 15606 36871 73742 110613 221226 331839 626807 663678 995517 1253614 1880421 1991034 3760842 5641263 10655719 11282526 16923789 21311438 31967157 33847578 63934314 95901471 191802942 287704413 575408826 1359470641 2718941282 4078411923 8156823846 12235235769 23111000897 24470471538 36705707307 46222001794 69333002691 73411414614 138666005382 207999008073 392887015249 415998016146 623997024219 785774030498 1178661045747 1247994048438 2357322091494 3535983137241 7071966274482 10607949411723 21215898823446
• Sum of all divisors σ(n): 50084256778920
• Sum of proper divisors (its aliquot sum) s(n): 28868357955474
• 21215898823446 is an abundant number, because the sum of its proper divisors (28868357955474) is greater than itself. Its abundance is 7652459132028

Bases of 21215898823446

• Binary: 100110100101110110110000111001110101100010110₂
• Hexadecimal: 0x134BB61CEB16
• Base-36: 7IQG6DQ1I

Squares and roots of 21215898823446

• 21215898823446 squared (21215898823446²) is 450114362886697367079314916
• 21215898823446 cubed (21215898823446³) is 9549580781984028558422703299728118320536
• The square root of 21215898823446 is 4606071.9516140865
• The cube root of 21215898823446 is 27683.4669696031

Scales and comparisons

• 21,215,898,823,446 seconds is equal to 674,599 years, 49 weeks, 5 days, 12 hours, 44 minutes, 6 seconds.
• To count from 1 to 21,215,898,823,446 would take you about one million, six hundred eighty-six thousand, four hundred ninety-nine 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 21215898823446 cubic inches would be around 2307 feet tall.

Recreational maths with 21215898823446

• 21215898823446 backwards is 64432889851212
• The number of decimal digits it has is: 14
• The sum of 21215898823446's digits is 63
• More coming soon!