21420683352

Names of 21420683352

• Cardinal: 21420683352 can be written as Twenty-one billion, four hundred twenty million, six hundred eighty-three thousand, three hundred fifty-two.

Scientific notation

• Scientific notation: 2.1420683352 × 10¹⁰

Factors of 21420683352

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4327

Divisors of 21420683352

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 72 271 542 813 1084 1626 2168 2439 3252 4051 4878 6504 8102 9756 12153 16204 19512 24306 32408 36459 48612 72918 73441 97224 145836 146882 220323 291672 293764 440646 587528 660969 881292 1097821 1321938 1762584 2195642 2643876 3293463 4391284 5287752 6586926 8782568 9880389 13173852 19760778 26347704 39521556 79043112 297509491 595018982 892528473 1190037964 1785056946 2380075928 2677585419 3570113892 5355170838 7140227784 10710341676 21420683352
• Sum of all divisors σ(n): 58243589820
• Sum of proper divisors (its aliquot sum) s(n): 36822906468
• 21420683352 is an abundant number, because the sum of its proper divisors (36822906468) is greater than itself. Its abundance is 15402223116

Bases of 21420683352

• Binary: 10011111100110001011011000001011000₂
• Hexadecimal: 0x4FCC5B058
• Base-36: 9U9BL20

Squares and roots of 21420683352

• 21420683352 squared (21420683352²) is 458845675266649955904
• 21420683352 cubed (21420683352³) is 9828787917321526871244346910208
• The square root of 21420683352 is 146358.0655515779
• The cube root of 21420683352 is 2777.2252627673

Scales and comparisons

• 21,420,683,352 seconds is equal to 681 years, 5 weeks, 5 days, 13 hours, 49 minutes, 12 seconds.
• To count from 1 to 21,420,683,352 would take you about one thousand, three hundred sixty-two 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 21420683352 cubic inches would be around 231.4 feet tall.

Recreational maths with 21420683352

• 21420683352 backwards is 25338602412
• 21420683352 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21420683352's digits is 36
• More coming soon!