20105385 is an odd 8-digits composite number following 20105384
and preceding 20105386 . In scientific notation, it is written as 2.0105385 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 10722864 positive integers (up to 20105385) that are relatively prime to 20105385.
20105385 has 8 divisors, whose sum is 32168640
The reverse of 20105385 is 58350102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred five thousand three hundred eighty-five
Scientific notation
2.0105385 × 10^7
Engineering notation
2.0105385 × 10^6
Prime Factorization
3 × 5 × 1340359
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20105385
Product of the distinct prime numbers
The prime factorization of 20105385 is 3 × 5 × 1340359.
Since it has a total of 3 prime factors.
4 , 7 , 94 , 16 , 547 , 142 , 3677 , 8098 , 64658 , 17767 , 45831 , 748322 , 2157605 , 1393623 , 9313483 , 75600828 , 571842040 , 101189787 , 837118634 , 7598569068
n×2
40210770
n×3
60316155
n×4
80421540
n×5
100526925
n÷2
10052692.5
n÷3
6701795
n÷3
5026346.25
n÷5
4021077
n2
404226505998225
n3
8.1271295302991E+21
n4
1.6339906815153E+29
n5
3.2852011738278E+36
2 √n
4483.9028758438
3 √n
271.91769153879
4 √n
66.961950956075
5 √n
28.884342015452
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20105384
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20105385 can be divided by 8 positive divisors.
The sum of these divisors (counting 20105385) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101100100010101001
3
Ternary
1101211110101220
4
Quaternary
1030230202221
5
Quinary
20121333020
6
Senary
1554532253
8
Octal
114544251
10
Decimal
20105385
12
Duodecimal
6897089
16
Hexadecimal
132c8a9
20
Vigesimal
65d395
36
Base36
byxex
md5
0983b7220b0a7ec0cc924023d399546f
sha1
dd71de97f8e034967efb8f961daf81a542e67cf9
sha256
5fa60edfa8fd7c25353721839566cc261ed46b3d466f775bbc5fb7e1b3b77c98
sha512
c121729b7aec49ca28bf2db795d0567c6b22fd52784bc5ba4873040e9c007ca634d109efa66b9ba336bdfa20a1ed26ca2fc46e6f5adfdf8a2715c05270b96e4c
ripemd-160
d646b915602fbf0d7f5953377b98e82dbadb4e24
Diameter
40210770
Circumference
126325859.62719
Area
1.2699150216303E+15
Volume
3.4042840569547E+22
Surface area
5.0796600865212E+15
Circumference
126325859.62719
Perimeter
80421540
Area
404226505998225
Diagonal
28433308.143733
Surface area
2425359035989350
Volume
8.1271295302991E+21
Space diagonal
34823548.325733
Perimeter
60316155
Area
1.7503521153874E+14
Altitude
17411774.162867
Surface area
1.7503521153874E+14
Volume
9.5779140040933E+20
Height
9477769.3812442