21208443984
21,208,443,984 is an even composite number composed of five prime numbers multiplied together.
21208443984 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 21208443984:
24 × 32 × 7 × 13 × 1618471
(2 × 2 × 2 × 2 × 3 × 3 × 7 × 13 × 1618471)See below for interesting mathematical facts about the number 21208443984 from the Numbermatics database.
Names of 21208443984
- Cardinal: 21208443984 can be written as Twenty-one billion, two hundred eight million, four hundred forty-three thousand, nine hundred eighty-four.
Scientific notation
- Scientific notation: 2.1208443984 × 1010
Factors of 21208443984
Divisors of 21208443984
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 36 39 42 48 52 56 63 72 78 84 91 104 112 117 126 144 156 168 182 208 234 252 273 312 336 364 468 504 546 624 728 819 936 1008 1092 1456 1638 1872 2184 3276 4368 6552 13104 1618471 3236942 4855413 6473884 9710826 11329297 12947768 14566239 19421652 21040123 22658594 25895536 29132478 33987891 38843304 42080246 45317188 58264956 63120369 67975782 77686608 84160492 90634376 101963673 116529912 126240738 135951564 147280861 168320984 181268752 189361107 203927346 233059824 252481476 271903128 294561722 336641968 378722214 407854692 441842583 504962952 543806256 589123444 757444428 815709384 883685166 1009925904 1178246888 1325527749 1514888856 1631418768 1767370332 2356493776 2651055498 3029777712 3534740664 5302110996 7069481328 10604221992 21208443984
- Sum of all divisors σ(n): 73051352192
- Sum of proper divisors (its aliquot sum) s(n): 51842908208
- 21208443984 is an abundant number, because the sum of its proper divisors (51842908208) is greater than itself. Its abundance is 30634464224
Bases of 21208443984
- Binary: 100111100000001111100101100010100002
- Hexadecimal: 0x4F01F2C50
- Base-36: 9QQYK40
Squares and roots of 21208443984
- 21208443984 squared (212084439842) is 449798096222465792256
- 21208443984 cubed (212084439843) is 9539517727844007757417556987904
-
The
square root of 21208443984 is 145631.1916589299 -
The
cube root of 21208443984 is 2768.0224118883
Scales and comparisons
How big is 21208443984?- 21,208,443,984 seconds is equal to 674 years, 18 weeks, 6 days, 2 hours, 26 minutes, 24 seconds.
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To count from 1 to 21,208,443,984 would take you about one thousand, three hundred forty-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 21208443984 cubic inches would be around 230.7 feet tall.
Recreational maths with 21208443984
- 21208443984 backwards is 48934480212
- The number of decimal digits it has is: 11
- The sum of 21208443984's digits is 45
- More coming soon!
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Keywords: Divisors of 21208443984, math, Factors of 21208443984, curriculum, school, college, exams, university, Prime factorization of 21208443984, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, two hundred eight million, four hundred forty-three thousand, nine hundred eighty-four.