21028622720
21,028,622,720 is an even composite number composed of five prime numbers multiplied together.
21028622720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21028622720:
27 × 5 × 7 × 61 × 76949
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 61 × 76949)See below for interesting mathematical facts about the number 21028622720 from the Numbermatics database.
Names of 21028622720
- Cardinal: 21028622720 can be written as Twenty-one billion, twenty-eight million, six hundred twenty-two thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.102862272 × 1010
Factors of 21028622720
Divisors of 21028622720
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 61 64 70 80 112 122 128 140 160 224 244 280 305 320 427 448 488 560 610 640 854 896 976 1120 1220 1708 1952 2135 2240 2440 3416 3904 4270 4480 4880 6832 7808 8540 9760 13664 17080 19520 27328 34160 39040 54656 68320 76949 136640 153898 273280 307796 384745 538643 615592 769490 1077286 1231184 1538980 2154572 2462368 2693215 3077960 4309144 4693889 4924736 5386430 6155920 8618288 9387778 9849472 10772860 12311840 17236576 18775556 21545720 23469445 24623680 32857223 34473152 37551112 43091440 46938890 49247360 65714446 68946304 75102224 86182880 93877780 131428892 150204448 164286115 172365760 187755560 262857784 300408896 328572230 344731520 375511120 525715568 600817792 657144460 751022240 1051431136 1314288920 1502044480 2102862272 2628577840 3004088960 4205724544 5257155680 10514311360 21028622720
- Sum of all divisors σ(n): 58395816000
- Sum of proper divisors (its aliquot sum) s(n): 37367193280
- 21028622720 is an abundant number, because the sum of its proper divisors (37367193280) is greater than itself. Its abundance is 16338570560
Bases of 21028622720
- Binary: 100111001010110011101010001100000002
- Hexadecimal: 0x4E5675180
- Base-36: 9NRWD4W
Squares and roots of 21028622720
- 21028622720 squared (210286227202) is 442202973500100198400
- 21028622720 cubed (210286227203) is 9298919495395764954350747648000
-
The
square root of 21028622720 is 145012.4915998619 -
The
cube root of 21028622720 is 2760.1770662849
Scales and comparisons
How big is 21028622720?- 21,028,622,720 seconds is equal to 668 years, 33 weeks, 3 days, 20 hours, 5 minutes, 20 seconds.
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To count from 1 to 21,028,622,720 would take you about one thousand, three hundred thirty-seven 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 21028622720 cubic inches would be around 230 feet tall.
Recreational maths with 21028622720
- 21028622720 backwards is 02722682012
- 21028622720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21028622720's digits is 32
- More coming soon!
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The information we have on file for 21028622720 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
Keywords: Divisors of 21028622720, math, Factors of 21028622720, curriculum, school, college, exams, university, Prime factorization of 21028622720, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, twenty-eight million, six hundred twenty-two thousand, seven hundred twenty.