21045355268

Names of 21045355268

• Cardinal: 21045355268 can be written as Twenty-one billion, forty-five million, three hundred fifty-five thousand, two hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1045355268 × 10¹⁰

Factors of 21045355268

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 850

Divisors of 21045355268

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 7 14 28 31 41 62 82 124 164 217 287 434 574 769 868 1148 1271 1538 2542 3076 5084 5383 8897 10766 17794 21532 23839 31529 35588 47678 63058 95356 126116 166873 220703 333746 441406 591361 667492 882812 977399 1182722 1954798 2365444 3909596 4139527 6841793 8279054 13683586 16558108 18332191 24245801 27367172 36664382 48491602 73328764 96983204 128325337 169720607 256650674 339441214 513301348 678882428 751619831 1503239662 3006479324 5261338817 10522677634 21045355268
• Sum of all divisors σ(n): 44566147584
• Sum of proper divisors (its aliquot sum) s(n): 23520792316
• 21045355268 is an abundant number, because the sum of its proper divisors (23520792316) is greater than itself. Its abundance is 2475437048

Bases of 21045355268

• Binary: 10011100110011001101010001100000100₂
• Hexadecimal: 0x4E666A304
• Base-36: 9O1V01W

Squares and roots of 21045355268

• 21045355268 squared (21045355268²) is 442906978356335351824
• 21045355268 cubed (21045355268³) is 9321134710185464177683851808832
• The square root of 21045355268 is 145070.1735988485
• The cube root of 21045355268 is 2760.9089663477

Scales and comparisons

• 21,045,355,268 seconds is equal to 669 years, 9 weeks, 1 day, 12 hours, 1 minute, 8 seconds.
• To count from 1 to 21,045,355,268 would take you about one thousand, three hundred thirty-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 21045355268 cubic inches would be around 230.1 feet tall.

Recreational maths with 21045355268

• 21045355268 backwards is 86255354012
• 21045355268 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21045355268's digits is 41
• More coming soon!