18138586390
18,138,586,390 is an even composite number composed of seven prime numbers multiplied together.
18138586390 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 18138586390:
2 × 5 × 17 × 31 × 47 × 67 × 1093
See below for interesting mathematical facts about the number 18138586390 from the Numbermatics database.
Names of 18138586390
- Cardinal: 18138586390 can be written as Eighteen billion, one hundred thirty-eight million, five hundred eighty-six thousand, three hundred ninety.
Scientific notation
- Scientific notation: 1.813858639 × 1010
Factors of 18138586390
Divisors of 18138586390
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 5 10 17 31 34 47 62 67 85 94 134 155 170 235 310 335 470 527 670 799 1054 1093 1139 1457 1598 2077 2186 2278 2635 2914 3149 3995 4154 5270 5465 5695 6298 7285 7990 10385 10930 11390 14570 15745 18581 20770 24769 31490 33883 35309 37162 49538 51371 53533 67766 70618 73231 92905 97619 102742 107066 123845 146462 169415 176545 185810 195238 247690 256855 267665 338830 353090 366155 488095 513710 535330 576011 732310 873307 976190 1152022 1244927 1592501 1659523 1746614 2270161 2489854 2880055 3185002 3319046 3441857 4366535 4540322 5760110 6224635 6883714 7962505 8297615 8733070 11350805 12449270 15925010 16595230 17209285 22701610 27072517 34418570 38592737 54145034 58511569 77185474 106697567 117023138 135362585 192963685 213395134 270725170 292557845 385927370 533487835 585115690 1066975670 1813858639 3627717278 9069293195 18138586390
- Sum of all divisors σ(n): 37022220288
- Sum of proper divisors (its aliquot sum) s(n): 18883633898
- 18138586390 is an abundant number, because the sum of its proper divisors (18883633898) is greater than itself. Its abundance is 745047508
Bases of 18138586390
- Binary: 100001110010010010011011101000101102
- Hexadecimal: 0x43924DD16
- Base-36: 8BZ8UTY
Squares and roots of 18138586390
- 18138586390 squared (181385863902) is 329008316227493232100
- 18138586390 cubed (181385863903) is 5967745766920824883586171119000
-
The
square root of 18138586390 is 134679.5693117557 -
The
cube root of 18138586390 is 2627.4501152489
Scales and comparisons
How big is 18138586390?- 18,138,586,390 seconds is equal to 576 years, 39 weeks, 8 hours, 13 minutes, 10 seconds.
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To count from 1 to 18,138,586,390 would take you about one thousand, one hundred fifty-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 18138586390 cubic inches would be around 219 feet tall.
Recreational maths with 18138586390
- 18138586390 backwards is 09368583181
- The number of decimal digits it has is: 11
- The sum of 18138586390's digits is 52
- More coming soon!
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The information we have on file for 18138586390 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!
Keywords: Divisors of 18138586390, math, Factors of 18138586390, curriculum, school, college, exams, university, Prime factorization of 18138586390, STEM, science, technology, engineering, physics, economics, calculator, eighteen billion, one hundred thirty-eight million, five hundred eighty-six thousand, three hundred ninety.