21039843328

Names of 21039843328

• Cardinal: 21039843328 can be written as Twenty-one billion, thirty-nine million, eight hundred forty-three thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1039843328 × 10¹⁰

Factors of 21039843328

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 27753

Divisors of 21039843328

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 53 56 64 106 112 128 212 224 256 371 424 448 512 742 848 896 1024 1484 1696 1792 2048 2968 3392 3584 5936 6784 7168 11872 13568 14336 23744 27136 27691 47488 54272 55382 94976 108544 110764 189952 193837 221528 379904 387674 443056 759808 775348 886112 1467623 1550696 1772224 2935246 3101392 3544448 5870492 6202784 7088896 10273361 11740984 12405568 14177792 20546722 23481968 24811136 28355584 41093444 46963936 49622272 56711168 82186888 93927872 99244544 164373776 187855744 198489088 328747552 375711488 396978176 657495104 751422976 1314990208 1502845952 2629980416 3005691904 5259960832 10519921664 21039843328
• Sum of all divisors σ(n): 48988255680
• Sum of proper divisors (its aliquot sum) s(n): 27948412352
• 21039843328 is an abundant number, because the sum of its proper divisors (27948412352) is greater than itself. Its abundance is 6908569024

Bases of 21039843328

• Binary: 10011100110000100101000100000000000₂
• Hexadecimal: 0x4E6128800
• Base-36: 9NYKV0G

Squares and roots of 21039843328

• 21039843328 squared (21039843328²) is 442675007266786115584
• 21039843328 cubed (21039843328³) is 9313812798114441369973059223552
• The square root of 21039843328 is 145051.1748590821
• The cube root of 21039843328 is 2760.6679108885

Scales and comparisons

• 21,039,843,328 seconds is equal to 669 years, 16 hours, 55 minutes, 28 seconds.
• To count from 1 to 21,039,843,328 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 21039843328 cubic inches would be around 230.1 feet tall.

Recreational maths with 21039843328

• 21039843328 backwards is 82334893012
• The number of decimal digits it has is: 11
• The sum of 21039843328's digits is 43
• More coming soon!