138489750
138,489,750 is an even composite number composed of five prime numbers multiplied together.
138489750 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 138489750:
2 × 34 × 53 × 7 × 977
(2 × 3 × 3 × 3 × 3 × 5 × 5 × 5 × 7 × 977)See below for interesting mathematical facts about the number 138489750 from the Numbermatics database.
Names of 138489750
- Cardinal: 138489750 can be written as One hundred thirty-eight million, four hundred eighty-nine thousand, seven hundred fifty.
Scientific notation
- Scientific notation: 1.3848975 × 108
Factors of 138489750
Divisors of 138489750
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 25 27 30 35 42 45 50 54 63 70 75 81 90 105 125 126 135 150 162 175 189 210 225 250 270 315 350 375 378 405 450 525 567 630 675 750 810 875 945 977 1050 1125 1134 1350 1575 1750 1890 1954 2025 2250 2625 2835 2931 3150 3375 4050 4725 4885 5250 5670 5862 6750 6839 7875 8793 9450 9770 10125 13678 14175 14655 15750 17586 20250 20517 23625 24425 26379 28350 29310 34195 41034 43965 47250 48850 52758 61551 68390 70875 73275 79137 87930 102585 122125 123102 131895 141750 146550 158274 170975 184653 205170 219825 244250 263790 307755 341950 366375 369306 395685 439650 512925 553959 615510 659475 732750 791370 854875 923265 1025850 1099125 1107918 1318950 1538775 1709750 1846530 1978425 2198250 2564625 2769795 3077550 3297375 3956850 4616325 5129250 5539590 6594750 7693875 9232650 9892125 13848975 15387750 19784250 23081625 27697950 46163250 69244875 138489750
- Sum of all divisors σ(n): 443057472
- Sum of proper divisors (its aliquot sum) s(n): 304567722
- 138489750 is an abundant number, because the sum of its proper divisors (304567722) is greater than itself. Its abundance is 166077972
Bases of 138489750
- Binary: 10000100000100101111100101102
- Hexadecimal: 0x8412F96
- Base-36: 2AGBDI
Squares and roots of 138489750
- 138489750 squared (1384897502) is 19179410855062500
- 138489750 cubed (1384897503) is 2656151814464891859375000
-
The
square root of 138489750 is 11768.1668071115 -
The
cube root of 138489750 is 517.3755214153
Scales and comparisons
How big is 138489750?- 138,489,750 seconds is equal to 4 years, 20 weeks, 6 days, 21 hours, 22 minutes, 30 seconds.
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To count from 1 to 138,489,750 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 138489750 cubic inches would be around 43.1 feet tall.
Recreational maths with 138489750
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