90138090
90,138,090 is an even composite number composed of seven prime numbers multiplied together.
90138090 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 90138090:
2 × 3 × 5 × 7 × 192 × 29 × 41
(2 × 3 × 5 × 7 × 19 × 19 × 29 × 41)See below for interesting mathematical facts about the number 90138090 from the Numbermatics database.
Names of 90138090
- Cardinal: 90138090 can be written as Ninety million, one hundred thirty-eight thousand and ninety.
Scientific notation
- Scientific notation: 9.013809 × 107
Factors of 90138090
Divisors of 90138090
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 5 6 7 10 14 15 19 21 29 30 35 38 41 42 57 58 70 82 87 95 105 114 123 133 145 174 190 203 205 210 246 266 285 287 290 361 399 406 410 435 551 570 574 609 615 665 722 779 798 861 870 1015 1083 1102 1189 1218 1230 1330 1435 1558 1653 1722 1805 1995 2030 2166 2337 2378 2527 2755 2870 3045 3306 3567 3610 3857 3895 3990 4305 4674 5054 5415 5453 5510 5945 6090 7134 7581 7714 7790 8265 8323 8610 10469 10830 10906 11571 11685 11890 12635 14801 15162 16359 16530 16646 17835 19285 20938 22591 23142 23370 24969 25270 27265 29602 31407 32718 35670 37905 38570 41615 44403 45182 49938 52345 54530 57855 62814 67773 73283 74005 75810 81795 83230 88806 103607 104690 112955 115710 124845 135546 146566 148010 157035 158137 163590 207214 219849 222015 225910 249690 310821 314070 316274 338865 366415 429229 439698 444030 474411 518035 621642 677730 732830 790685 858458 948822 1036070 1099245 1287687 1554105 1581370 2146145 2198490 2372055 2575374 3004603 3108210 4292290 4744110 6009206 6438435 9013809 12876870 15023015 18027618 30046030 45069045 90138090
- Sum of all divisors σ(n): 276514560
- Sum of proper divisors (its aliquot sum) s(n): 186376470
- 90138090 is an abundant number, because the sum of its proper divisors (186376470) is greater than itself. Its abundance is 96238380
Bases of 90138090
- Binary: 1010101111101100101111010102
- Hexadecimal: 0x55F65EA
- Base-36: 1HNYZU
Squares and roots of 90138090
- 90138090 squared (901380902) is 8124875268848100
- 90138090 cubed (901380903) is 732360738222204234129000
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The
square root of 90138090 is 9494.1081729671 -
The
cube root of 90138090 is 448.3695564891
Scales and comparisons
How big is 90138090?- 90,138,090 seconds is equal to 2 years, 45 weeks, 6 hours, 21 minutes, 30 seconds.
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To count from 1 to 90,138,090 would take you about four 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 90138090 cubic inches would be around 37.4 feet tall.
Recreational maths with 90138090
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