21398649012
21,398,649,012 is an even composite number composed of five prime numbers multiplied together.
21398649012 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21398649012:
22 × 311 × 13 × 23 × 101
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 13 × 23 × 101)See below for interesting mathematical facts about the number 21398649012 from the Numbermatics database.
Names of 21398649012
- Cardinal: 21398649012 can be written as Twenty-one billion, three hundred ninety-eight million, six hundred forty-nine thousand and twelve.
Scientific notation
- Scientific notation: 2.1398649012 × 1010
Factors of 21398649012
Divisors of 21398649012
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 9 12 13 18 23 26 27 36 39 46 52 54 69 78 81 92 101 108 117 138 156 162 202 207 234 243 276 299 303 324 351 404 414 468 486 598 606 621 702 729 828 897 909 972 1053 1196 1212 1242 1313 1404 1458 1794 1818 1863 2106 2187 2323 2484 2626 2691 2727 2916 3159 3588 3636 3726 3939 4212 4374 4646 5252 5382 5454 5589 6318 6561 6969 7452 7878 8073 8181 8748 9292 9477 10764 10908 11178 11817 12636 13122 13938 15756 16146 16362 16767 18954 19683 20907 22356 23634 24219 24543 26244 27876 28431 30199 32292 32724 33534 35451 37908 39366 41814 47268 48438 49086 50301 56862 59049 60398 62721 67068 70902 72657 73629 78732 83628 85293 90597 96876 98172 100602 106353 113724 118098 120796 125442 141804 145314 147258 150903 170586 177147 181194 188163 201204 212706 217971 220887 236196 250884 255879 271791 290628 294516 301806 319059 341172 354294 362388 376326 425412 435942 441774 452709 511758 543582 564489 603612 638118 653913 662661 708588 752652 767637 815373 871884 883548 905418 957177 1023516 1087164 1128978 1276236 1307826 1325322 1358127 1535274 1630746 1693467 1810836 1914354 1961739 1987983 2257956 2302911 2446119 2615652 2650644 2716254 2871531 3070548 3261492 3386934 3828708 3923478 3975966 4074381 4605822 4892238 5080401 5432508 5743062 5885217 5963949 6773868 7338357 7846956 7951932 8148762 8614593 9211644 9784476 10160802 11486124 11770434 11927898 14676714 15241203 16297524 17229186 17655651 17891847 20321604 22015071 23540868 23855796 25843779 29353428 30482406 34458372 35311302 35783694 44030142 45723609 51687558 52966953 60964812 66045213 70622604 71567388 77531337 88060284 91447218 103375116 105933906 132090426 137170827 155062674 182894436 198135639 211867812 232594011 264180852 274341654 310125348 396271278 411512481 465188022 548683308 594406917 792542556 823024962 930376044 1188813834 1646049924 1783220751 2377627668 3566441502 5349662253 7132883004 10699324506 21398649012
- Sum of all divisors σ(n): 63747290880
- Sum of proper divisors (its aliquot sum) s(n): 42348641868
- 21398649012 is an abundant number, because the sum of its proper divisors (42348641868) is greater than itself. Its abundance is 20949992856
Bases of 21398649012
- Binary: 100111110110111010101111000101101002
- Hexadecimal: 0x4FB7578B4
- Base-36: 9TW7B90
Squares and roots of 21398649012
- 21398649012 squared (213986490122) is 457902179538768576144
- 21398649012 cubed (213986490123) is 9798488021779916807600452369728
-
The
square root of 21398649012 is 146282.7707284765 -
The
cube root of 21398649012 is 2776.2726737959
Scales and comparisons
How big is 21398649012?- 21,398,649,012 seconds is equal to 680 years, 21 weeks, 2 days, 13 hours, 10 minutes, 12 seconds.
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To count from 1 to 21,398,649,012 would take you about one thousand, three hundred sixty 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 21398649012 cubic inches would be around 231.4 feet tall.
Recreational maths with 21398649012
- 21398649012 backwards is 21094689312
- The number of decimal digits it has is: 11
- The sum of 21398649012's digits is 45
- More coming soon!
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