20158438 is an even 8-digits composite number following 20158437
and preceding 20158439 . In scientific notation, it is written as 2.0158438 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 10079218 positive integers (up to 20158438) that are relatively prime to 20158438.
20158438 has 4 divisors, whose sum is 30237660
The reverse of 20158438 is 83485102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred fifty-eight thousand four hundred thirty-eight
Scientific notation
2.0158438 × 10^7
Engineering notation
2.0158438 × 10^6
Prime Factorization
2 × 10079219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20158438
Product of the distinct prime numbers
The prime factorization of 20158438 is 2 × 10079219.
Since it has a total of 2 prime factors.
10 , 5 , 2 , 94 , 142 , 591 , 6428 , 4555 , 36157 , 28165 , 926547 , 909426 , 9472969 , 6866117 , 89705221 , 58017760 , 273098581 , 51904922 , 1109152747 , 9518745621
n×2
40316876
n×3
60475314
n×4
80633752
n×5
100792190
n÷2
10079219
n÷3
6719479.3333333
n÷3
5039609.5
n÷5
4031687.6
n2
406362622599844
n3
8.1916357331964E+21
n4
1.6513058104622E+29
n5
3.3287745799243E+36
2 √n
4489.8149182344
3 √n
272.15665536143
4 √n
67.006081203383
5 √n
28.899569638363
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
-20158437
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 20158438 can be divided by 4 positive divisors.
The sum of these divisors (counting 20158438) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001011111100110
3
Ternary
1101221011011211
4
Quaternary
1030321133212
5
Quinary
20130032223
6
Senary
2000022034
8
Octal
114713746
10
Decimal
20158438
12
Duodecimal
690191a
16
Hexadecimal
13397e6
20
Vigesimal
65jg1i
36
Base36
c02cm
md5
63926d26563969f054d6021690ec0dc9
sha1
96f86ad3ca4b6e613aea790c27a4fee7bab36bc3
sha256
623d4509c4c670ab1c4cc81990ee0c8bbeb017ab5852a2618f79d375bb879f7c
sha512
5a0b51d65d9f0997988f5e9e41a4c9290762faa69ce2182c5d2c5c6e910326423ffa84e9fc28fee4a50a97db1701fd21a9f0bffa6089b7b006fb75548799a06b
ripemd-160
02e87cf7521f594e66c574236220e99368995c96
Diameter
40316876
Circumference
126659201.45729
Area
1.2766258298532E+15
Volume
3.4313043520391E+22
Surface area
5.1065033194126E+15
Circumference
126659201.45729
Perimeter
80633752
Area
406362622599844
Diagonal
28508336.415857
Surface area
2438175735599064
Volume
8.1916357331964E+21
Space diagonal
34915438.817227
Perimeter
60475314
Area
1.7596017715997E+14
Altitude
17457719.408614
Surface area
1.7596017715997E+14
Volume
9.6539352932553E+20
Height
9502778.8052857