21721438144
21,721,438,144 is an even composite number composed of four prime numbers multiplied together.
21721438144 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 21721438144:
26 × 73 × 97 × 1012
(2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 × 7 × 97 × 101 × 101)See below for interesting mathematical facts about the number 21721438144 from the Numbermatics database.
Names of 21721438144
- Cardinal: 21721438144 can be written as Twenty-one billion, seven hundred twenty-one million, four hundred thirty-eight thousand, one hundred forty-four.
Scientific notation
- Scientific notation: 2.1721438144 × 1010
Factors of 21721438144
Divisors of 21721438144
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 4 7 8 14 16 28 32 49 56 64 97 98 101 112 194 196 202 224 343 388 392 404 448 679 686 707 776 784 808 1358 1372 1414 1552 1568 1616 2716 2744 2828 3104 3136 3232 4753 4949 5432 5488 5656 6208 6464 9506 9797 9898 10201 10864 10976 11312 19012 19594 19796 20402 21728 21952 22624 33271 34643 38024 39188 39592 40804 43456 45248 66542 68579 69286 71407 76048 78376 79184 81608 133084 137158 138572 142814 152096 156752 158368 163216 266168 274316 277144 285628 304192 313504 316736 326432 480053 499849 532336 548632 554288 571256 627008 652864 960106 989497 999698 1064672 1097264 1108576 1142512 1920212 1978994 1999396 2129344 2194528 2217152 2285024 3360371 3498943 3840424 3957988 3998792 4389056 4570048 6720742 6926479 6997886 7680848 7915976 7997584 13441484 13852958 13995772 15361696 15831952 15995168 26882968 27705916 27991544 30723392 31663904 31990336 48485353 53765936 55411832 55983088 63327808 96970706 107531872 110823664 111966176 193941412 215063744 221647328 223932352 339397471 387882824 443294656 678794942 775765648 1357589884 1551531296 2715179768 3103062592 5430359536 10860719072 21721438144
- Sum of all divisors σ(n): 51292455200
- Sum of proper divisors (its aliquot sum) s(n): 29571017056
- 21721438144 is an abundant number, because the sum of its proper divisors (29571017056) is greater than itself. Its abundance is 7849578912
Bases of 21721438144
- Binary: 101000011101011001011010111110000002
- Hexadecimal: 0x50EB2D7C0
- Base-36: 9Z8DSXS
Squares and roots of 21721438144
- 21721438144 squared (217214381442) is 471820875043618164736
- 21721438144 cubed (217214381443) is 10248627952307905267267826089984
-
The
square root of 21721438144 is 147381.9464656375 -
The
cube root of 21721438144 is 2790.1626787293
Scales and comparisons
How big is 21721438144?- 21,721,438,144 seconds is equal to 690 years, 35 weeks, 12 hours, 49 minutes, 4 seconds.
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To count from 1 to 21,721,438,144 would take you about one thousand, three hundred eighty-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 21721438144 cubic inches would be around 232.5 feet tall.
Recreational maths with 21721438144
- 21721438144 backwards is 44183412712
- The number of decimal digits it has is: 11
- The sum of 21721438144's digits is 37
- More coming soon!
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Numbermatics. (2024). Number 21721438144 - Facts about the integer. Retrieved 6 June 2024, from https://numbermatics.com/n/21721438144/
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The information we have on file for 21721438144 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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