20729391720
20,729,391,720 is an even composite number composed of six prime numbers multiplied together.
20729391720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 20729391720:
23 × 3 × 5 × 41 × 1979 × 2129
(2 × 2 × 2 × 3 × 5 × 41 × 1979 × 2129)See below for interesting mathematical facts about the number 20729391720 from the Numbermatics database.
Names of 20729391720
- Cardinal: 20729391720 can be written as Twenty billion, seven hundred twenty-nine million, three hundred ninety-one thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.072939172 × 1010
Factors of 20729391720
Divisors of 20729391720
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 20 24 30 40 41 60 82 120 123 164 205 246 328 410 492 615 820 984 1230 1640 1979 2129 2460 3958 4258 4920 5937 6387 7916 8516 9895 10645 11874 12774 15832 17032 19790 21290 23748 25548 29685 31935 39580 42580 47496 51096 59370 63870 79160 81139 85160 87289 118740 127740 162278 174578 237480 243417 255480 261867 324556 349156 405695 436445 486834 523734 649112 698312 811390 872890 973668 1047468 1217085 1309335 1622780 1745780 1947336 2094936 2434170 2618670 3245560 3491560 4213291 4868340 5237340 8426582 9736680 10474680 12639873 16853164 21066455 25279746 33706328 42132910 50559492 63199365 84265820 101118984 126398730 168531640 172744931 252797460 345489862 505594920 518234793 690979724 863724655 1036469586 1381959448 1727449310 2072939172 2591173965 3454898620 4145878344 5182347930 6909797240 10364695860 20729391720
- Sum of all divisors σ(n): 63767088000
- Sum of proper divisors (its aliquot sum) s(n): 43037696280
- 20729391720 is an abundant number, because the sum of its proper divisors (43037696280) is greater than itself. Its abundance is 22308304560
Bases of 20729391720
- Binary: 100110100111001000101101010011010002
- Hexadecimal: 0x4D3916A68
- Base-36: 9ITQT0O
Squares and roots of 20729391720
- 20729391720 squared (207293917202) is 429707681081204558400
- 20729391720 cubed (207293917203) is 8907578846225122420523216448000
-
The
square root of 20729391720 is 143977.0527549443 -
The
cube root of 20729391720 is 2747.0223072843
Scales and comparisons
How big is 20729391720?- 20,729,391,720 seconds is equal to 659 years, 6 weeks, 5 days, 12 hours, 22 minutes.
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To count from 1 to 20,729,391,720 would take you about one thousand, three hundred eighteen 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 20729391720 cubic inches would be around 228.9 feet tall.
Recreational maths with 20729391720
- 20729391720 backwards is 02719392702
- The number of decimal digits it has is: 11
- The sum of 20729391720's digits is 42
- More coming soon!
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The information we have on file for 20729391720 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 20729391720, math, Factors of 20729391720, curriculum, school, college, exams, university, Prime factorization of 20729391720, STEM, science, technology, engineering, physics, economics, calculator, twenty billion, seven hundred twenty-nine million, three hundred ninety-one thousand, seven hundred twenty.