18918021312
18,918,021,312 is an even composite number composed of five prime numbers multiplied together.
18918021312 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 18918021312:
26 × 33 × 31 × 432 × 191
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 31 × 43 × 43 × 191)See below for interesting mathematical facts about the number 18918021312 from the Numbermatics database.
Names of 18918021312
- Cardinal: 18918021312 can be written as Eighteen billion, nine hundred eighteen million, twenty-one thousand, three hundred twelve.
Scientific notation
- Scientific notation: 1.8918021312 × 1010
Factors of 18918021312
Divisors of 18918021312
- Number of divisors d(n): 336
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 43 48 54 62 64 72 86 93 96 108 124 129 144 172 186 191 192 216 248 258 279 288 344 372 382 387 432 496 516 558 573 576 688 744 764 774 837 864 992 1032 1116 1146 1161 1333 1376 1488 1528 1548 1674 1719 1728 1849 1984 2064 2232 2292 2322 2666 2752 2976 3056 3096 3348 3438 3698 3999 4128 4464 4584 4644 5157 5332 5547 5921 5952 6112 6192 6696 6876 7396 7998 8213 8256 8928 9168 9288 10314 10664 11094 11842 11997 12224 12384 13392 13752 14792 15996 16426 16641 17763 17856 18336 18576 20628 21328 22188 23684 23994 24639 24768 26784 27504 29584 31992 32852 33282 35526 35991 36672 37152 41256 42656 44376 47368 47988 49278 49923 53289 53568 55008 57319 59168 63984 65704 66564 71052 71982 73917 74304 82512 85312 88752 94736 95976 98556 99846 106578 110016 114638 118336 127968 131408 133128 142104 143964 147834 159867 165024 171957 177504 189472 191952 197112 199692 213156 221751 229276 254603 255936 262816 266256 284208 287928 295668 319734 330048 343914 353159 355008 378944 383904 394224 399384 426312 443502 458552 509206 515871 525632 532512 568416 575856 591336 639468 687828 706318 763809 767808 788448 798768 852624 887004 917104 1018412 1031742 1059477 1065024 1136832 1151712 1182672 1278936 1375656 1412636 1527618 1547613 1576896 1597536 1705248 1774008 1834208 2036824 2063484 2118954 2291427 2303424 2365344 2557872 2751312 2825272 3055236 3095226 3178431 3195072 3410496 3548016 3668416 4073648 4126968 4237908 4582854 4730688 5115744 5502624 5650544 6110472 6190452 6356862 6874281 7096032 8147296 8253936 8475816 9165708 9535293 10231488 10947929 11005248 11301088 12220944 12380904 12713724 13748562 14192064 16294592 16507872 16951632 18331416 19070586 21895858 22602176 24441888 24761808 25427448 27497124 32843787 33015744 33903264 36662832 38141172 43791716 48883776 49523616 50854896 54994248 65687574 67806528 73325664 76282344 87583432 98531361 99047232 101709792 109988496 131375148 146651328 152564688 175166864 197062722 203419584 219976992 262750296 295594083 305129376 350333728 394125444 439953984 525500592 591188166 610258752 700667456 788250888 1051001184 1182376332 1576501776 2102002368 2364752664 3153003552 4729505328 6306007104 9459010656 18918021312
- Sum of all divisors σ(n): 59083407360
- Sum of proper divisors (its aliquot sum) s(n): 40165386048
- 18918021312 is an abundant number, because the sum of its proper divisors (40165386048) is greater than itself. Its abundance is 21247364736
Bases of 18918021312
- Binary: 100011001111001101000011000110000002
- Hexadecimal: 0x4679A18C0
- Base-36: 8OVAUO0
Squares and roots of 18918021312
- 18918021312 squared (189180213122) is 357891530361286201344
- 18918021312 cubed (189180213123) is 6770599598759107416757315043328
-
The
square root of 18918021312 is 137542.7981102609 -
The
cube root of 18918021312 is 2664.5583603589
Scales and comparisons
How big is 18918021312?- 18,918,021,312 seconds is equal to 601 years, 27 weeks, 5 days, 13 hours, 55 minutes, 12 seconds.
-
To count from 1 to 18,918,021,312 would take you about one thousand, two hundred three 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 18918021312 cubic inches would be around 222 feet tall.
Recreational maths with 18918021312
- 18918021312 backwards is 21312081981
- 18918021312 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18918021312's digits is 36
- More coming soon!
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The information we have on file for 18918021312 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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