21312312021
21,312,312,021 is an odd composite number composed of seven prime numbers multiplied together.
21312312021 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21312312021:
32 × 7 × 11 × 13 × 17 × 37 × 3761
(3 × 3 × 7 × 11 × 13 × 17 × 37 × 3761)See below for interesting mathematical facts about the number 21312312021 from the Numbermatics database.
Names of 21312312021
- Cardinal: 21312312021 can be written as Twenty-one billion, three hundred twelve million, three hundred twelve thousand and twenty-one.
Scientific notation
- Scientific notation: 2.1312312021 × 1010
Factors of 21312312021
Divisors of 21312312021
- Number of divisors d(n): 192
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Complete list of divisors:
1 3 7 9 11 13 17 21 33 37 39 51 63 77 91 99 111 117 119 143 153 187 221 231 259 273 333 357 407 429 481 561 629 663 693 777 819 1001 1071 1221 1287 1309 1443 1547 1683 1887 1989 2331 2431 2849 3003 3367 3663 3761 3927 4329 4403 4641 5291 5661 6919 7293 8177 8547 9009 10101 11283 11781 13209 13923 15873 17017 20757 21879 24531 25641 26327 30303 33849 37037 39627 41371 47619 48433 48893 51051 57239 62271 63937 73593 78981 89947 111111 124113 139157 145299 146679 153153 171717 191811 236943 269841 289597 333333 342251 372339 417471 435897 440037 447559 515151 537823 575433 629629 703307 809523 831181 868791 974099 1026753 1252413 1342677 1530727 1613469 1809041 1888887 2109921 2365669 2493543 2606373 2922297 3080259 3764761 4028031 4592181 4840407 4923149 5427123 5666661 5818267 6329763 7097007 7480629 8766891 9142991 10715089 11294283 12663287 13776543 14769447 16281369 16559683 17454801 19899451 21291021 26022359 27428973 30753697 32145267 33882849 37989861 44308341 49679049 52364403 59698353 64000937 78067077 82286919 92261091 96435801 113969583 139296157 149037147 179095059 182156513 192002811 215275879 234201231 276783273 338290667 417888471 546469539 576008433 645827637 1014872001 1253665413 1639408617 1937482911 2368034669 3044616003 7104104007 21312312021
- Sum of all divisors σ(n): 44959090176
- Sum of proper divisors (its aliquot sum) s(n): 23646778155
- 21312312021 is an abundant number, because the sum of its proper divisors (23646778155) is greater than itself. Its abundance is 2334466134
Bases of 21312312021
- Binary: 100111101100101000000010010110101012
- Hexadecimal: 0x4F65012D5
- Base-36: 9SGST79
Squares and roots of 21312312021
- 21312312021 squared (213123120212) is 454214643680461104441
- 21312312021 cubed (213123120213) is 9680364210625322879000860785261
-
The
square root of 21312312021 is 145987.3693885879 -
The
cube root of 21312312021 is 2772.5338377821
Scales and comparisons
How big is 21312312021?- 21,312,312,021 seconds is equal to 677 years, 34 weeks, 4 days, 6 hours, 40 minutes, 21 seconds.
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To count from 1 to 21,312,312,021 would take you about one thousand, three hundred fifty-five 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 21312312021 cubic inches would be around 231 feet tall.
Recreational maths with 21312312021
- 21312312021 backwards is 12021321312
- The number of decimal digits it has is: 11
- The sum of 21312312021's digits is 18
- More coming soon!
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The information we have on file for 21312312021 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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