138840239 is an odd 9-digits composite number following 138840238
and preceding 138840240 . In scientific notation, it is written as 1.38840239 × 10^8.
The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors.
There are 131532516 positive integers (up to 138840239) that are relatively prime to 138840239.
138840239 has 6 divisors, whose sum is 146532600
The reverse of 138840239 is 932048831
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred thirty-eight million eight hundred forty thousand two hundred thirty-nine
Scientific notation
1.38840239 × 10^8
Engineering notation
1.38840239 × 10^6
Prime Factorization
19 × 19 × 384599
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
7307381
Product of the distinct prime numbers
The prime factorization of 138840239 is 19 × 19 × 384599.
Since it has a total of 3 prime factors.
6 , 7 , 9 , 70 , 45 , 76 , 420 , 4240 , 17067 , 94332 , 272662 , 504264 , 3311891 , 7403601 , 70971189 , 17233112 , 802876112 , 700604776 , 3245498260 , 784307519
n×2
277680478
n×3
416520717
n×4
555360956
n×5
694201195
n÷2
69420119.5
n÷3
46280079.666667
n÷3
34710059.75
n÷5
27768047.8
n2
19276611965577121
n3
2.676369412411E+24
n4
3.7158776887143E+32
n5
5.1591334639586E+40
2 √n
11783.048799016
3 √n
517.81161065774
4 √n
108.54975264374
5 √n
42.511171238977
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138840238
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138840239 can be divided by 6 positive divisors.
The sum of these divisors (counting 138840239) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1000010001101000100010101111
3
Ternary
100200020211000002
4
Quaternary
20101220202233
5
Quinary
241020341424
6
Senary
21435454515
8
Octal
1021504257
10
Decimal
138840239
12
Duodecimal
3a5b743b
16
Hexadecimal
84688af
20
Vigesimal
237f0bj
36
Base36
2anttb
md5
2b8e45b8c5d7a8fb5e2dc53e05ad825f
sha1
c986d1a8281892c4cc0b86df950f49362c05878e
sha256
f09430b60e404e65e9bbdab82129d79eb903589c760af81e758a906c62231553
sha512
eb2c8213170a7442c6cd33598ba49a8e69737353abe99faece4878055d9f8c49efb8238b970b28a7f7d53497eef36a002aa223117b8dd8711b36c18e5aeecc40
ripemd-160
c4d643820f94bc2e439e6e76bddc81c1939f7172
Diameter
277680478
Circumference
872358949.7301
Area
6.0559262537158E+16
Volume
1.1210749979097E+25
Surface area
2.4223705014863E+17
Circumference
872358949.7301
Perimeter
555360956
Area
19276611965577121
Diagonal
196349748.99692
Surface area
115659671793462726
Volume
2.676369412411E+24
Space diagonal
240478348.08301
Perimeter
416520717
Area
8.3470178305424E+15
Altitude
120239174.0415
Surface area
8.3470178305424E+15
Volume
3.1541316007934E+23
Height
65449916.332307