21237645429
21,237,645,429 is an odd composite number composed of six prime numbers multiplied together.
21237645429 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21237645429:
32 × 7 × 11 × 134 × 29 × 37
(3 × 3 × 7 × 11 × 13 × 13 × 13 × 13 × 29 × 37)See below for interesting mathematical facts about the number 21237645429 from the Numbermatics database.
Names of 21237645429
- Cardinal: 21237645429 can be written as Twenty-one billion, two hundred thirty-seven million, six hundred forty-five thousand, four hundred twenty-nine.
Scientific notation
- Scientific notation: 2.1237645429 × 1010
Factors of 21237645429
Divisors of 21237645429
- Number of divisors d(n): 240
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Complete list of divisors:
1 3 7 9 11 13 21 29 33 37 39 63 77 87 91 99 111 117 143 169 203 231 259 261 273 319 333 377 407 429 481 507 609 693 777 819 957 1001 1073 1131 1183 1221 1287 1443 1521 1827 1859 2197 2233 2331 2639 2849 2871 3003 3219 3367 3393 3549 3663 4147 4329 4901 5291 5577 6253 6591 6699 7511 7917 8547 9009 9657 10101 10647 11803 12441 13013 13949 14703 15379 15873 16731 18759 19773 20097 22533 23751 24167 25641 28561 29029 30303 34307 35409 37037 37323 39039 41847 43771 44109 46137 47619 53911 56277 63713 67599 68783 72501 81289 82621 85683 87087 97643 102921 106227 111111 117117 125541 131313 138411 153439 161733 169169 181337 191139 199927 206349 217503 243867 247863 257049 261261 292929 308763 314171 333333 377377 393939 445991 460317 481481 485199 507507 544011 569023 573417 599781 619047 700843 731601 743589 828269 878787 894179 942513 1056757 1074073 1132131 1269359 1337973 1380951 1444443 1522521 1632033 1707069 1799343 1994707 2102529 2199197 2357381 2484807 2682537 2827539 3170271 3222219 3396393 3808077 4013919 4333329 4905901 5121207 5797883 5984121 6259253 6307587 6597591 7072143 7397299 7454421 8047611 9110959 9510813 9666657 11424231 11624327 13962949 14717703 16501667 17393649 17952363 18777759 19792773 21216429 22191897 25931191 27332877 30645953 34872981 41888847 44153109 49505001 52180947 56333277 63776713 66575691 77793573 81370289 81998631 91937859 104618943 125666541 148515003 181518337 191330139 214521671 233380719 244110867 275813577 337105483 544555011 573990417 643565013 732332601 1011316449 1633665033 1930695039 2359738381 3033949347 7079215143 21237645429
- Sum of all divisors σ(n): 44020379520
- Sum of proper divisors (its aliquot sum) s(n): 22782734091
- 21237645429 is an abundant number, because the sum of its proper divisors (22782734091) is greater than itself. Its abundance is 1545088662
Bases of 21237645429
- Binary: 100111100011101110011000000011101012
- Hexadecimal: 0x4F1DCC075
- Base-36: 9R8CG39
Squares and roots of 21237645429
- 21237645429 squared (212376454292) is 451037583367924594041
- 21237645429 cubed (212376454293) is 9578976270721010179851524288589
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The
square root of 21237645429 is 145731.4153811731 -
The
cube root of 21237645429 is 2769.2922392083
Scales and comparisons
How big is 21237645429?- 21,237,645,429 seconds is equal to 675 years, 15 weeks, 1 day, 1 hour, 57 minutes, 9 seconds.
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To count from 1 to 21,237,645,429 would take you about one thousand, three hundred fifty 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 21237645429 cubic inches would be around 230.8 feet tall.
Recreational maths with 21237645429
- 21237645429 backwards is 92454673212
- The number of decimal digits it has is: 11
- The sum of 21237645429's digits is 45
- More coming soon!
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