18121243184
18,121,243,184 is an even composite number composed of four prime numbers multiplied together.
18121243184 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety divisors.
Prime factorization of 18121243184:
24 × 11 × 732 × 1392
(2 × 2 × 2 × 2 × 11 × 73 × 73 × 139 × 139)See below for interesting mathematical facts about the number 18121243184 from the Numbermatics database.
Names of 18121243184
- Cardinal: 18121243184 can be written as Eighteen billion, one hundred twenty-one million, two hundred forty-three thousand, one hundred eighty-four.
Scientific notation
- Scientific notation: 1.8121243184 × 1010
Factors of 18121243184
Divisors of 18121243184
- Number of divisors d(n): 90
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Complete list of divisors:
1 2 4 8 11 16 22 44 73 88 139 146 176 278 292 556 584 803 1112 1168 1529 1606 2224 3058 3212 5329 6116 6424 10147 10658 12232 12848 19321 20294 21316 24464 38642 40588 42632 58619 77284 81176 85264 111617 117238 154568 162352 212531 223234 234476 309136 425062 446468 468952 740731 850124 892936 937904 1410433 1481462 1700248 1785872 2820866 2962924 3400496 5641732 5925848 8148041 11283464 11851696 15514763 16296082 22566928 31029526 32592164 62059052 65184328 102961609 124118104 130368656 205923218 248236208 411846436 823692872 1132577699 1647385744 2265155398 4530310796 9060621592 18121243184
- Sum of all divisors σ(n): 39114975276
- Sum of proper divisors (its aliquot sum) s(n): 20993732092
- 18121243184 is an abundant number, because the sum of its proper divisors (20993732092) is greater than itself. Its abundance is 2872488908
Bases of 18121243184
- Binary: 100001110000001110000111010001100002
- Hexadecimal: 0x4381C3A30
- Base-36: 8BOX4Q8
Squares and roots of 18121243184
- 18121243184 squared (181212431842) is 328379454533666457856
- 18121243184 cubed (181212431843) is 5950643952233841197952463253504
-
The
square root of 18121243184 is 134615.1669909449 -
The
cube root of 18121243184 is 2626.6124362303
Scales and comparisons
How big is 18121243184?- 18,121,243,184 seconds is equal to 576 years, 10 weeks, 2 days, 14 hours, 39 minutes, 44 seconds.
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To count from 1 to 18,121,243,184 would take you about one thousand, one hundred fifty-two 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 18121243184 cubic inches would be around 218.9 feet tall.
Recreational maths with 18121243184
- 18121243184 backwards is 48134212181
- The number of decimal digits it has is: 11
- The sum of 18121243184's digits is 35
- More coming soon!
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