18418306816
18,418,306,816 is an even composite number composed of five prime numbers multiplied together.
18418306816 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 18418306816:
28 × 7 × 132 × 61 × 997
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 13 × 13 × 61 × 997)See below for interesting mathematical facts about the number 18418306816 from the Numbermatics database.
Names of 18418306816
- Cardinal: 18418306816 can be written as Eighteen billion, four hundred eighteen million, three hundred six thousand, eight hundred sixteen.
Scientific notation
- Scientific notation: 1.8418306816 × 1010
Factors of 18418306816
Divisors of 18418306816
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 4 7 8 13 14 16 26 28 32 52 56 61 64 91 104 112 122 128 169 182 208 224 244 256 338 364 416 427 448 488 676 728 793 832 854 896 976 997 1183 1352 1456 1586 1664 1708 1792 1952 1994 2366 2704 2912 3172 3328 3416 3904 3988 4732 5408 5551 5824 6344 6832 6979 7808 7976 9464 10309 10816 11102 11648 12688 12961 13664 13958 15616 15952 18928 20618 21632 22204 23296 25376 25922 27328 27916 31904 37856 41236 43264 44408 50752 51844 54656 55832 60817 63808 72163 75712 82472 88816 90727 101504 103688 109312 111664 121634 127616 144326 151424 164944 168493 177632 181454 203008 207376 223328 243268 255232 288652 302848 329888 336986 355264 362908 414752 425719 446656 486536 577304 659776 673972 710528 725816 790621 829504 851438 893312 973072 1154608 1179451 1319552 1347944 1421056 1451632 1581242 1659008 1702876 1786624 1946144 2309216 2358902 2639104 2695888 2903264 3162484 3318016 3405752 3892288 4618432 4717804 5391776 5534347 5806528 6324968 6811504 7784576 9236864 9435608 10278073 10783552 11068694 11613056 12649936 13623008 15569152 18473728 18871216 20556146 21567104 22137388 23226112 25299872 27246016 37742432 41112292 43134208 44274776 50599744 54492032 71946511 75484864 82224584 88549552 101199488 108984064 143893022 150969728 164449168 177099104 202398976 287786044 301939456 328898336 354198208 575572088 657796672 708396416 1151144176 1315593344 1416792832 2302288352 2631186688 4604576704 9209153408 18418306816
- Sum of all divisors σ(n): 46289683104
- Sum of proper divisors (its aliquot sum) s(n): 27871376288
- 18418306816 is an abundant number, because the sum of its proper divisors (27871376288) is greater than itself. Its abundance is 9453069472
Bases of 18418306816
- Binary: 100010010011101000100001111000000002
- Hexadecimal: 0x449D10F00
- Base-36: 8GLS8HS
Squares and roots of 18418306816
- 18418306816 squared (184183068162) is 339234025968312057856
- 18418306816 cubed (184183068163) is 6248116372711282975224151146496
-
The
square root of 18418306816 is 135714.0627053805 -
The
cube root of 18418306816 is 2640.8875008155
Scales and comparisons
How big is 18418306816?- 18,418,306,816 seconds is equal to 585 years, 33 weeks, 3 days, 20 hours, 20 minutes, 16 seconds.
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To count from 1 to 18,418,306,816 would take you about one thousand, one hundred seventy-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 18418306816 cubic inches would be around 220.1 feet tall.
Recreational maths with 18418306816
- 18418306816 backwards is 61860381481
- The number of decimal digits it has is: 11
- The sum of 18418306816's digits is 46
- More coming soon!
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