21021054720
21,021,054,720 is an even composite number composed of five prime numbers multiplied together.
21021054720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21021054720:
28 × 3 × 5 × 397 × 13789
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 397 × 13789)See below for interesting mathematical facts about the number 21021054720 from the Numbermatics database.
Names of 21021054720
- Cardinal: 21021054720 can be written as Twenty-one billion, twenty-one million, fifty-four thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.102105472 × 1010
Factors of 21021054720
Divisors of 21021054720
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 397 480 640 768 794 960 1191 1280 1588 1920 1985 2382 3176 3840 3970 4764 5955 6352 7940 9528 11910 12704 13789 15880 19056 23820 25408 27578 31760 38112 41367 47640 50816 55156 63520 68945 76224 82734 95280 101632 110312 127040 137890 152448 165468 190560 206835 220624 254080 275780 304896 330936 381120 413670 441248 508160 551560 661872 762240 827340 882496 1103120 1323744 1524480 1654680 1764992 2206240 2647488 3309360 3529984 4412480 5294976 5474233 6618720 8824960 10589952 10948466 13237440 16422699 17649920 21896932 26474880 27371165 32845398 43793864 52949760 54742330 65690796 82113495 87587728 109484660 131381592 164226990 175175456 218969320 262763184 328453980 350350912 437938640 525526368 656907960 700701824 875877280 1051052736 1313815920 1401403648 1751754560 2102105472 2627631840 3503509120 4204210944 5255263680 7007018240 10510527360 21021054720
- Sum of all divisors σ(n): 67309982880
- Sum of proper divisors (its aliquot sum) s(n): 46288928160
- 21021054720 is an abundant number, because the sum of its proper divisors (46288928160) is greater than itself. Its abundance is 25267873440
Bases of 21021054720
- Binary: 100111001001111001111010111000000002
- Hexadecimal: 0x4E4F3D700
- Base-36: 9NNE5MO
Squares and roots of 21021054720
- 21021054720 squared (210210547202) is 441884741541234278400
- 21021054720 cubed (210210547203) is 9288883331871342902586114048000
-
The
square root of 21021054720 is 144986.3949479399 -
The
cube root of 21021054720 is 2759.8459061207
Scales and comparisons
How big is 21021054720?- 21,021,054,720 seconds is equal to 668 years, 21 weeks, 5 hours, 52 minutes.
-
To count from 1 to 21,021,054,720 would take you about one thousand, three hundred thirty-six 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 21021054720 cubic inches would be around 230 feet tall.
Recreational maths with 21021054720
- 21021054720 backwards is 02745012012
- 21021054720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21021054720's digits is 24
- More coming soon!
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The information we have on file for 21021054720 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!
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