21380386384
21,380,386,384 is an even composite number composed of three prime numbers multiplied together.
21380386384 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21380386384:
24 × 75 × 433
(2 × 2 × 2 × 2 × 7 × 7 × 7 × 7 × 7 × 43 × 43 × 43)See below for interesting mathematical facts about the number 21380386384 from the Numbermatics database.
Names of 21380386384
- Cardinal: 21380386384 can be written as Twenty-one billion, three hundred eighty million, three hundred eighty-six thousand, three hundred eighty-four.
Scientific notation
- Scientific notation: 2.1380386384 × 1010
Factors of 21380386384
Divisors of 21380386384
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 4 7 8 14 16 28 43 49 56 86 98 112 172 196 301 343 344 392 602 686 688 784 1204 1372 1849 2107 2401 2408 2744 3698 4214 4802 4816 5488 7396 8428 9604 12943 14749 14792 16807 16856 19208 25886 29498 29584 33614 33712 38416 51772 58996 67228 79507 90601 103243 103544 117992 134456 159014 181202 206486 207088 235984 268912 318028 362404 412972 556549 634207 636056 722701 724808 825944 1113098 1268414 1272112 1445402 1449616 1651888 2226196 2536828 2890804 3895843 4439449 4452392 5073656 5781608 7791686 8878898 8904784 10147312 11563216 15583372 17757796 27270901 31076143 31166744 35515592 54541802 62152286 62333488 71031184 109083604 124304572 190896307 218167208 248609144 381792614 436334416 497218288 763585228 1336274149 1527170456 2672548298 3054340912 5345096596 10690193192 21380386384
- Sum of all divisors σ(n): 49478827200
- Sum of proper divisors (its aliquot sum) s(n): 28098440816
- 21380386384 is an abundant number, because the sum of its proper divisors (28098440816) is greater than itself. Its abundance is 6718054432
Bases of 21380386384
- Binary: 100111110100101111011001110010100002
- Hexadecimal: 0x4FA5ECE50
- Base-36: 9TLBVPS
Squares and roots of 21380386384
- 21380386384 squared (213803863842) is 457120921929132595456
- 21380386384 cubed (213803863843) is 9773421935055153556818042671104
-
The
square root of 21380386384 is 146220.3350563799 -
The
cube root of 21380386384 is 2775.4826478191
Scales and comparisons
How big is 21380386384?- 21,380,386,384 seconds is equal to 679 years, 43 weeks, 1 day, 4 hours, 13 minutes, 4 seconds.
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To count from 1 to 21,380,386,384 would take you about one thousand, three hundred fifty-nine 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 21380386384 cubic inches would be around 231.3 feet tall.
Recreational maths with 21380386384
- 21380386384 backwards is 48368308312
- The number of decimal digits it has is: 11
- The sum of 21380386384's digits is 46
- More coming soon!
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