138505290
138,505,290 is an even composite number composed of seven prime numbers multiplied together.
138505290 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 138505290:
2 × 3 × 5 × 7 × 11 × 17 × 3527
See below for interesting mathematical facts about the number 138505290 from the Numbermatics database.
Names of 138505290
- Cardinal: 138505290 can be written as One hundred thirty-eight million, five hundred five thousand, two hundred ninety.
Scientific notation
- Scientific notation: 1.3850529 × 108
Factors of 138505290
Divisors of 138505290
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 7 10 11 14 15 17 21 22 30 33 34 35 42 51 55 66 70 77 85 102 105 110 119 154 165 170 187 210 231 238 255 330 357 374 385 462 510 561 595 714 770 935 1122 1155 1190 1309 1785 1870 2310 2618 2805 3527 3570 3927 5610 6545 7054 7854 10581 13090 17635 19635 21162 24689 35270 38797 39270 49378 52905 59959 74067 77594 105810 116391 119918 123445 148134 179877 193985 232782 246890 271579 299795 359754 370335 387970 419713 543158 581955 599590 659549 740670 814737 839426 899385 1163910 1259139 1319098 1357895 1629474 1798770 1978647 2098565 2518278 2715790 3297745 3957294 4073685 4197130 4616843 6295695 6595490 8147370 9233686 9893235 12591390 13850529 19786470 23084215 27701058 46168430 69252645 138505290
- Sum of all divisors σ(n): 438939648
- Sum of proper divisors (its aliquot sum) s(n): 300434358
- 138505290 is an abundant number, because the sum of its proper divisors (300434358) is greater than itself. Its abundance is 161929068
Bases of 138505290
- Binary: 10000100000101101100010010102
- Hexadecimal: 0x8416C4A
- Base-36: 2AGND6
Squares and roots of 138505290
- 138505290 squared (1385052902) is 19183715357984100
- 138505290 cubed (1385052903) is 2657046058935041585889000
-
The
square root of 138505290 is 11768.8270443575 -
The
cube root of 138505290 is 517.3948723417
Scales and comparisons
How big is 138505290?- 138,505,290 seconds is equal to 4 years, 21 weeks, 1 hour, 41 minutes, 30 seconds.
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To count from 1 to 138,505,290 would take you about six 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 138505290 cubic inches would be around 43.1 feet tall.
Recreational maths with 138505290
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The information we have on file for 138505290 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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