138439 is an odd 6-digits composite number following 138438
and preceding 138440 . In scientific notation, it is written as 1.38439 × 10^5.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 118656 positive integers (up to 138439) that are relatively prime to 138439.
138439 has 4 divisors, whose sum is 158224
The reverse of 138439 is 934831
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 28
Digital Root 1
Name
one hundred thirty-eight thousand four hundred thirty-nine
Scientific notation
1.38439 × 10^5
Engineering notation
1.38439 × 10^3
Prime Factorization
7 × 19777
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138439
Product of the distinct prime numbers
The prime factorization of 138439 is 7 × 19777.
Since it has a total of 2 prime factors.
1 , 9 , 47 , 20 , 574 , 393 , 838 , 7799 , 20965 , 8418 , 896626 , 241614 , 5953532 , 1157389 , 70904908 , 762069 , 492563108 , 821833269 , 7883956063 , 2348354276
n×2
276878
n×3
415317
n×4
553756
n×5
692195
n÷2
69219.5
n÷3
46146.333333333
n÷3
34609.75
n÷5
27687.8
n2
19165356721
n3
2653232819098519
n4
3.6731089824318E+20
n5
5.0850153441888E+25
2 √n
372.07391738739
3 √n
51.731231573722
4 √n
19.289217645809
5 √n
10.67214434727
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138438
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138439 can be divided by 4 positive divisors.
The sum of these divisors (counting 138439) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001110011000111
3
Ternary
21000220101
4
Quaternary
201303013
5
Quinary
13412224
6
Senary
2544531
8
Octal
416307
10
Decimal
138439
12
Duodecimal
68147
16
Hexadecimal
21cc7
20
Vigesimal
h61j
36
Base36
2ytj
md5
399c25b5e601a05ea54350e031630ec8
sha1
6875b662db503c9553823aae075d5da9ea393950
sha256
90640989114cdc6bbe3a5d2f0797e44d265db32962093d4e9cf0bc39e4397481
sha512
83d25566b6bad468a1cbbd8b6e38198447112805de5207a84ef7b9c491dfcec39c3e319589073edb9b902fbd68cddddb3b0329babffd5dab7ed19b84383cdf30
ripemd-160
0cb582d5337ccf75d5e16a51fbe21b511a1b37d8
Diameter
276878
Circumference
869837.89074063
Area
60209743878.121
Volume
1.1113835643658E+16
Surface area
240838975512.49
Circumference
869837.89074063
Perimeter
553756
Area
19165356721
Diagonal
195782.31136137
Surface area
114992140326
Volume
2653232819098519
Space diagonal
239783.38174903
Perimeter
415317
Area
8298842896.4884
Altitude
119891.69087451
Surface area
8298842896.4884
Volume
3.1268648640854E+14
Height
65260.77045379