20105438 is an even 8-digits composite number following 20105437
and preceding 20105439 . In scientific notation, it is written as 2.0105438 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 10052718 positive integers (up to 20105438) that are relatively prime to 20105438.
20105438 has 4 divisors, whose sum is 30158160
The reverse of 20105438 is 83450102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred five thousand four hundred thirty-eight
Scientific notation
2.0105438 × 10^7
Engineering notation
2.0105438 × 10^6
Prime Factorization
2 × 10052719
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20105438
Product of the distinct prime numbers
The prime factorization of 20105438 is 2 × 10052719.
Since it has a total of 2 prime factors.
3 , 8 , 25 , 9 , 361 , 486 , 2585 , 7416 , 15277 , 76930 , 601241 , 695484 , 2958683 , 2908140 , 95726668 , 13022857 , 892686849 , 375162171 , 9255412879 , 4992515181
n×2
40210876
n×3
60316314
n×4
80421752
n×5
100527190
n÷2
10052719
n÷3
6701812.6666667
n÷3
5026359.5
n÷5
4021087.6
n2
404228637171844
n3
8.127193802483E+21
n4
1.6340079110981E+29
n5
3.2852444748092E+36
2 √n
4483.9087858698
3 √n
271.91793047353
4 √n
66.961995085793
5 √n
28.884357243894
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
-20105437
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 20105438 can be divided by 4 positive divisors.
The sum of these divisors (counting 20105438) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101100100011011110
3
Ternary
1101211110110212
4
Quaternary
1030230203132
5
Quinary
20121333223
6
Senary
1554532422
8
Octal
114544336
10
Decimal
20105438
12
Duodecimal
6897112
16
Hexadecimal
132c8de
20
Vigesimal
65d3bi
36
Base36
byxge
md5
d4d0ea681d3b738c332412d947eb4374
sha1
e6c6cc160dbb3f89095435a8f3fb7d854c0b28d3
sha256
721e49329ad75aadc1ee80a1a18894e93d3188e254433b0c28aef416bfac837c
sha512
c2c1779d93db80424f93eab1d571360377dbef1d11eb48bd5176faef3d67c75657d5124c2fcff6b78186473c2396881e55eb662cee184e1faaed8d69ac68065b
ripemd-160
b45fd138dfead879f47e31e4f9c0df57a1360bdb
Diameter
40210876
Circumference
126326192.63601
Area
1.2699217169097E+15
Volume
3.4043109792241E+22
Surface area
5.0796868676387E+15
Circumference
126326192.63601
Perimeter
80421752
Area
404228637171844
Diagonal
28433383.097051
Surface area
2425371823031064
Volume
8.127193802483E+21
Space diagonal
34823640.124426
Perimeter
60316314
Area
1.7503613436399E+14
Altitude
17411820.062213
Surface area
1.7503613436399E+14
Volume
9.5779897495884E+20
Height
9477794.3656838