20940449728
20,940,449,728 is an even composite number composed of five prime numbers multiplied together.
20940449728 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 20940449728:
26 × 112 × 23 × 89 × 1321
(2 × 2 × 2 × 2 × 2 × 2 × 11 × 11 × 23 × 89 × 1321)See below for interesting mathematical facts about the number 20940449728 from the Numbermatics database.
Names of 20940449728
- Cardinal: 20940449728 can be written as Twenty billion, nine hundred forty million, four hundred forty-nine thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 2.0940449728 × 1010
Factors of 20940449728
Divisors of 20940449728
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 4 8 11 16 22 23 32 44 46 64 88 89 92 121 176 178 184 242 253 352 356 368 484 506 704 712 736 968 979 1012 1321 1424 1472 1936 1958 2024 2047 2642 2783 2848 3872 3916 4048 4094 5284 5566 5696 7744 7832 8096 8188 10568 10769 11132 14531 15664 16192 16376 21136 21538 22264 22517 29062 30383 31328 32752 42272 43076 44528 45034 58124 60766 62656 65504 84544 86152 89056 90068 116248 117569 121532 131008 159841 172304 178112 180136 232496 235138 243064 247687 319682 334213 344608 360272 464992 470276 486128 495374 639364 668426 689216 720544 929984 940552 972256 990748 1278728 1293259 1336852 1441088 1881104 1944512 1981496 2557456 2586518 2673704 2704087 3676343 3762208 3962992 5114912 5173036 5347408 5408174 7352686 7524416 7925984 10229824 10346072 10694816 10816348 14225849 14705372 15851968 20692144 21389632 21632696 28451698 29410744 29744957 41384288 43265392 56903396 58821488 59489914 82768576 86530784 113806792 117642976 118979828 173061568 227613584 235285952 237959656 327194527 455227168 475919312 654389054 910454336 951838624 1308778108 1903677248 2617556216 5235112432 10470224864 20940449728
- Sum of all divisors σ(n): 48232588320
- Sum of proper divisors (its aliquot sum) s(n): 27292138592
- 20940449728 is an abundant number, because the sum of its proper divisors (27292138592) is greater than itself. Its abundance is 6351688864
Bases of 20940449728
- Binary: 100111000000010010111100111110000002
- Hexadecimal: 0x4E025E7C0
- Base-36: 9MBEIF4
Squares and roots of 20940449728
- 20940449728 squared (209404497282) is 438502434810895273984
- 20940449728 cubed (209404497283) is 9182438191763149671534738276352
-
The
square root of 20940449728 is 144708.1536334425 -
The
cube root of 20940449728 is 2756.3138552929
Scales and comparisons
How big is 20940449728?- 20,940,449,728 seconds is equal to 665 years, 43 weeks, 5 days, 7 hours, 35 minutes, 28 seconds.
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To count from 1 to 20,940,449,728 would take you about one thousand, three hundred thirty-one 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 20940449728 cubic inches would be around 229.7 feet tall.
Recreational maths with 20940449728
- 20940449728 backwards is 82794404902
- The number of decimal digits it has is: 11
- The sum of 20940449728's digits is 49
- More coming soon!
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