21263645312

Names of 21263645312

• Cardinal: 21263645312 can be written as Twenty-one billion, two hundred sixty-three million, six hundred forty-five thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1263645312 × 10¹⁰

Factors of 21263645312

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 31022

Divisors of 21263645312

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 59 64 91 104 112 118 128 182 208 224 236 364 413 416 448 472 728 767 826 832 896 944 1456 1534 1652 1664 1888 2912 3068 3304 3776 5369 5824 6136 6608 7552 10738 11648 12272 13216 21476 24544 26432 30941 42952 49088 52864 61882 85904 98176 123764 171808 216587 247528 343616 402233 433174 495056 687232 804466 866348 990112 1608932 1732696 1825519 1980224 2815631 3217864 3465392 3651038 3960448 5631262 6435728 6930784 7302076 11262524 12778633 12871456 13861568 14604152 22525048 23731747 25557266 25742912 27723136 29208304 45050096 47463494 51114532 51485824 58416608 90100192 94926988 102229064 116833216 166122229 180200384 189853976 204458128 233666432 332244458 360400768 379707952 408916256 664488916 759415904 817832512 1328977832 1518831808 1635665024 2657955664 3037663616 5315911328 10631822656 21263645312
• Sum of all divisors σ(n): 53022211200
• Sum of proper divisors (its aliquot sum) s(n): 31758565888
• 21263645312 is an abundant number, because the sum of its proper divisors (31758565888) is greater than itself. Its abundance is 10494920576

Bases of 21263645312

• Binary: 10011110011011010010111101010000000₂
• Hexadecimal: 0x4F3697A80
• Base-36: 9RNTPQ8

Squares and roots of 21263645312

• 21263645312 squared (21263645312²) is 452142611954539577344
• 21263645312 cubed (21263645312³) is 9614200131042580640909207011328
• The square root of 21263645312 is 145820.5928941451
• The cube root of 21263645312 is 2770.4218671331

Scales and comparisons

• 21,263,645,312 seconds is equal to 676 years, 6 weeks, 1 day, 8 minutes, 32 seconds.
• To count from 1 to 21,263,645,312 would take you about one thousand, three hundred fifty-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 21263645312 cubic inches would be around 230.9 feet tall.

Recreational maths with 21263645312

• 21263645312 backwards is 21354636212
• The number of decimal digits it has is: 11
• The sum of 21263645312's digits is 35
• More coming soon!