21438614952

Names of 21438614952

• Cardinal: 21438614952 can be written as Twenty-one billion, four hundred thirty-eight million, six hundred fourteen thousand, nine hundred fifty-two.

Scientific notation

• Scientific notation: 2.1438614952 × 10¹⁰

Factors of 21438614952

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 468

Divisors of 21438614952

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 463 926 1389 1852 2778 3704 4167 5556 8334 11112 12501 16668 25002 33336 50004 100008 214369 428738 643107 857476 1286214 1714952 1929321 2572428 3858642 5144856 5787963 7717284 11575926 15434568 23151852 46303704 99252847 198505694 297758541 397011388 595517082 794022776 893275623 1191034164 1786551246 2382068328 2679826869 3573102492 5359653738 7146204984 10719307476 21438614952
• Sum of all divisors σ(n): 59680608000
• Sum of proper divisors (its aliquot sum) s(n): 38241993048
• 21438614952 is an abundant number, because the sum of its proper divisors (38241993048) is greater than itself. Its abundance is 16803378096

Bases of 21438614952

• Binary: 10011111101110101110100110110101000₂
• Hexadecimal: 0x4FDD74DA8
• Base-36: 9UJZX60

Squares and roots of 21438614952

• 21438614952 squared (21438614952²) is 459614211060117962304
• 21438614952 cubed (21438614952³) is 9853492097385128717534306769408
• The square root of 21438614952 is 146419.3120868965
• 21438614952 is a perfect cube number. Its cube root is 2778

Scales and comparisons

• 21,438,614,952 seconds is equal to 681 years, 35 weeks, 3 days, 2 hours, 49 minutes, 12 seconds.
• To count from 1 to 21,438,614,952 would take you about one thousand, three hundred sixty-three 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 21438614952 cubic inches would be around 231.5 feet tall.

Recreational maths with 21438614952

• 21438614952 backwards is 25941683412
• The number of decimal digits it has is: 11
• The sum of 21438614952's digits is 45
• More coming soon!