138185439 is an odd 9-digits composite number following 138185438
and preceding 138185440 . In scientific notation, it is written as 1.38185439 × 10^8.
The sum of its digits is 42. It has a total of 5 prime factors and 16 positive divisors.
There are 78962520 positive integers (up to 138185439) that are relatively prime to 138185439.
138185439 has 16 divisors, whose sum is 214867200
The reverse of 138185439 is 934581831
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred thirty-eight million one hundred eighty-five thousand four hundred thirty-nine
Scientific notation
1.38185439 × 10^8
Engineering notation
1.38185439 × 10^6
Prime Factorization
3 × 7 × 7 × 7 × 134291
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2820111
Product of the distinct prime numbers
The prime factorization of 138185439 is 3 × 7 × 7 × 7 × 134291.
Since it has a total of 5 prime factors.
5 , 8 , 16 , 85 , 849 , 524 , 2112 , 4347 , 52590 , 23588 , 881789 , 711717 , 7480073 , 1749109 , 15317582 , 24153368 , 811075782 , 629090435 , 3926996644 , 4163270288
n×2
276370878
n×3
414556317
n×4
552741756
n×5
690927195
n÷2
69092719.5
n÷3
46061813
n÷3
34546359.75
n÷5
27637087.8
n2
19095215551622721
n3
2.6386807438006E+24
n4
3.6462725696293E+32
n5
5.0386177574789E+40
2 √n
11755.230282729
3 √n
516.99629112891
4 √n
108.42153975447
5 √n
42.470997040197
1 , 3 , 7 , 21 , 49 , 147 , 343 , 1029 , 134291 , 402873 , 940037 , 2820111 , 6580259 , 19740777 , 46061813 , 138185439
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138185438
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138185439 can be divided by 16 positive divisors.
The sum of these divisors (counting 138185439) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000001111001000101011011111
3
Ternary
100122000112210020
4
Quaternary
20033020223133
5
Quinary
240333413224
6
Senary
21413443223
8
Octal
1017105337
10
Decimal
138185439
12
Duodecimal
3a340513
16
Hexadecimal
83c8adf
20
Vigesimal
233d3bj
36
Base36
2a9skf
md5
522938b23d3411ac041e7121d52a18a0
sha1
7a3100ba2efb32b8f858f048ed0548dbb6b0494b
sha256
73c68392bf4278de8fe5e36de08a90ac775005606cd4bcf4faf393f6f6471b7a
sha512
e0be089e6f8f8a88cf9026d03b23a2dd559d8da637261416697a599d89af08af89fe1e417fbea3edb228ec4e41a05e80eb7a367779fcc5bd8067283429925ba7
ripemd-160
fb388c6ca4351e442c33ed6d4c0d72cc57b4343a
Diameter
276370878
Circumference
868244719.99096
Area
5.9989388895692E+16
Volume
1.105288005319E+25
Surface area
2.3995755558277E+17
Circumference
868244719.99096
Perimeter
552741756
Area
19095215551622721
Diagonal
195423721.95628
Surface area
114571293309736326
Volume
2.6386807438006E+24
Space diagonal
239344201.21421
Perimeter
414556317
Area
8.2684708792225E+15
Altitude
119672100.6071
Surface area
8.2684708792225E+15
Volume
3.1097150788796E+23
Height
65141240.652093