42645690
42,645,690 is an even composite number composed of six prime numbers multiplied together.
42645690 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 42645690:
2 × 34 × 5 × 17 × 19 × 163
(2 × 3 × 3 × 3 × 3 × 5 × 17 × 19 × 163)See below for interesting mathematical facts about the number 42645690 from the Numbermatics database.
Names of 42645690
- Cardinal: 42645690 can be written as Forty-two million, six hundred forty-five thousand, six hundred ninety.
Scientific notation
- Scientific notation: 4.264569 × 107
Factors of 42645690
Divisors of 42645690
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 5 6 9 10 15 17 18 19 27 30 34 38 45 51 54 57 81 85 90 95 102 114 135 153 162 163 170 171 190 255 270 285 306 323 326 342 405 459 489 510 513 570 646 765 810 815 855 918 969 978 1026 1377 1467 1530 1539 1615 1630 1710 1938 2295 2445 2565 2754 2771 2907 2934 3078 3097 3230 4401 4590 4845 4890 5130 5542 5814 6194 6885 7335 7695 8313 8721 8802 9291 9690 13203 13770 13855 14535 14670 15390 15485 16626 17442 18582 22005 24939 26163 26406 27710 27873 29070 30970 41565 43605 44010 46455 49878 52326 52649 55746 66015 74817 83130 83619 87210 92910 105298 124695 130815 132030 139365 149634 157947 167238 224451 249390 250857 261630 263245 278730 315894 374085 418095 448902 473841 501714 526490 748170 789735 836190 947682 1122255 1254285 1421523 1579470 2244510 2369205 2508570 2843046 4264569 4738410 7107615 8529138 14215230 21322845 42645690
- Sum of all divisors σ(n): 128589120
- Sum of proper divisors (its aliquot sum) s(n): 85943430
- 42645690 is an abundant number, because the sum of its proper divisors (85943430) is greater than itself. Its abundance is 43297740
Bases of 42645690
- Binary: 101000101010111000101110102
- Hexadecimal: 0x28AB8BA
- Base-36: PE1MI
Squares and roots of 42645690
- 42645690 squared (426456902) is 1818654875576100
- 42645690 cubed (426456903) is 77557792040806932009000
-
The
square root of 42645690 is 6530.3667584601 -
The
cube root of 42645690 is 349.3749114879
Scales and comparisons
How big is 42645690?- 42,645,690 seconds is equal to 1 year, 18 weeks, 3 days, 14 hours, 1 minute, 30 seconds.
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To count from 1 to 42,645,690 would take you about 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 42645690 cubic inches would be around 29.1 feet tall.
Recreational maths with 42645690
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