21315998768
21,315,998,768 is an even composite number composed of five prime numbers multiplied together.
21315998768 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21315998768:
24 × 192 × 53 × 179 × 389
(2 × 2 × 2 × 2 × 19 × 19 × 53 × 179 × 389)See below for interesting mathematical facts about the number 21315998768 from the Numbermatics database.
Names of 21315998768
- Cardinal: 21315998768 can be written as Twenty-one billion, three hundred fifteen million, nine hundred ninety-eight thousand, seven hundred sixty-eight.
Scientific notation
- Scientific notation: 2.1315998768 × 1010
Factors of 21315998768
Divisors of 21315998768
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 4 8 16 19 38 53 76 106 152 179 212 304 358 361 389 424 716 722 778 848 1007 1432 1444 1556 2014 2864 2888 3112 3401 4028 5776 6224 6802 7391 8056 9487 13604 14782 16112 18974 19133 20617 27208 29564 37948 38266 41234 54416 59128 64619 69631 75896 76532 82468 118256 129238 139262 140429 151792 153064 164936 180253 258476 278524 280858 306128 329872 360506 391723 516952 557048 561716 721012 783446 1033904 1114096 1123432 1322989 1442024 1566892 2246864 2645978 2884048 3133784 3424807 3690443 5291956 6267568 6849614 7380886 7442737 10583912 13699228 14761772 14885474 21167824 25136791 27398456 29523544 29770948 50273582 54796912 59047088 59541896 70118417 100547164 119083792 140236834 201094328 280473668 402188656 560947336 1121894672 1332249923 2664499846 5328999692 10657999384 21315998768
- Sum of all divisors σ(n): 44773138800
- Sum of proper divisors (its aliquot sum) s(n): 23457140032
- 21315998768 is an abundant number, because the sum of its proper divisors (23457140032) is greater than itself. Its abundance is 2141141264
Bases of 21315998768
- Binary: 100111101101000100001010100001100002
- Hexadecimal: 0x4F6885430
- Base-36: 9SIZTWW
Squares and roots of 21315998768
- 21315998768 squared (213159987682) is 454371803477377517824
- 21315998768 cubed (213159987683) is 9685388803137717285807282040832
-
The
square root of 21315998768 is 145999.9957808219 -
The
cube root of 21315998768 is 2772.6936990783
Scales and comparisons
How big is 21315998768?- 21,315,998,768 seconds is equal to 677 years, 40 weeks, 4 days, 22 hours, 46 minutes, 8 seconds.
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To count from 1 to 21,315,998,768 would take you about one thousand, three hundred fifty-five 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 21315998768 cubic inches would be around 231.1 feet tall.
Recreational maths with 21315998768
- 21315998768 backwards is 86789951312
- The number of decimal digits it has is: 11
- The sum of 21315998768's digits is 59
- More coming soon!
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Keywords: Divisors of 21315998768, math, Factors of 21315998768, curriculum, school, college, exams, university, Prime factorization of 21315998768, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, three hundred fifteen million, nine hundred ninety-eight thousand, seven hundred sixty-eight.