138420984
138,420,984 is an even composite number composed of five prime numbers multiplied together.
138420984 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 138420984:
23 × 3 × 13 × 487 × 911
(2 × 2 × 2 × 3 × 13 × 487 × 911)See below for interesting mathematical facts about the number 138420984 from the Numbermatics database.
Names of 138420984
- Cardinal: 138420984 can be written as One hundred thirty-eight million, four hundred twenty thousand, nine hundred eighty-four.
Scientific notation
- Scientific notation: 1.38420984 × 108
Factors of 138420984
Divisors of 138420984
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 487 911 974 1461 1822 1948 2733 2922 3644 3896 5466 5844 6331 7288 10932 11688 11843 12662 18993 21864 23686 25324 35529 37986 47372 50648 71058 75972 94744 142116 151944 284232 443657 887314 1330971 1774628 2661942 3549256 5323884 5767541 10647768 11535082 17302623 23070164 34605246 46140328 69210492 138420984
- Sum of all divisors σ(n): 373847040
- Sum of proper divisors (its aliquot sum) s(n): 235426056
- 138420984 is an abundant number, because the sum of its proper divisors (235426056) is greater than itself. Its abundance is 97005072
Bases of 138420984
- Binary: 10000100000000100010111110002
- Hexadecimal: 0x84022F8
- Base-36: 2AEUBC
Squares and roots of 138420984
- 138420984 squared (1384209842) is 19160368811528256
- 138420984 cubed (1384209843) is 2652197104694651739323904
-
The
square root of 138420984 is 11765.2447488355 -
The
cube root of 138420984 is 517.2898743177
Scales and comparisons
How big is 138420984?- 138,420,984 seconds is equal to 4 years, 20 weeks, 6 days, 2 hours, 16 minutes, 24 seconds.
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To count from 1 to 138,420,984 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 138420984 cubic inches would be around 43.1 feet tall.
Recreational maths with 138420984
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The information we have on file for 138420984 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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