20115871 is an odd 8-digits composite number following 20115870
and preceding 20115872 . In scientific notation, it is written as 2.0115871 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 19625200 positive integers (up to 20115871) that are relatively prime to 20115871.
20115871 has 4 divisors, whose sum is 20606544
The reverse of 20115871 is 17851102
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred fifteen thousand eight hundred seventy-one
Scientific notation
2.0115871 × 10^7
Engineering notation
2.0115871 × 10^6
Prime Factorization
41 × 490631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20115871
Product of the distinct prime numbers
The prime factorization of 20115871 is 41 × 490631.
Since it has a total of 2 prime factors.
2 , 1 , 65 , 66 , 88 , 312 , 6021 , 5466 , 2622 , 16391 , 878181 , 603779 , 5453346 , 2945063 , 92324623 , 69280345 , 224919489 , 852819876 , 2710308336 , 2508128543
n×2
40231742
n×3
60347613
n×4
80463484
n×5
100579355
n÷2
10057935.5
n÷3
6705290.3333333
n÷3
5028967.75
n÷5
4023174.2
n2
404648266088641
n3
8.1398523210128E+21
n4
1.6374021924854E+29
n5
3.2937771279154E+36
2 √n
4485.072017259
3 √n
271.96495637773
4 √n
66.970680280695
5 √n
28.887354323277
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
-20115870
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 20115871 can be divided by 4 positive divisors.
The sum of these divisors (counting 20115871) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101111000110011111
3
Ternary
1101211222210021
4
Quaternary
1030233012133
5
Quinary
20122201441
6
Senary
1555053011
8
Octal
114570637
10
Decimal
20115871
12
Duodecimal
68a1167
16
Hexadecimal
132f19f
20
Vigesimal
65e9db
36
Base36
bz5i7
md5
9a01db471b4efedf8507b8ad28b9f78f
sha1
e49a822442d7558a61879ec02b02bf5bd666b991
sha256
507920577df5d625388907899d969e6bac3a39a708a72ac2a19900dbb89844c5
sha512
f29143d9d26e4a99df4b20104fb16908828fef6a4c46adc770a1986456bbac84910261b5002ac417046f926c49274db9a42aa46d52dfea6a79dd350117fa71cb
ripemd-160
d79445c96e8502ed14ef46684137950ff0213a57
Diameter
40231742
Circumference
126391745.10832
Area
1.2712400200319E+15
Volume
3.4096133670666E+22
Surface area
5.0849600801277E+15
Circumference
126391745.10832
Perimeter
80463484
Area
404648266088641
Diagonal
28448137.587148
Surface area
2427889596531846
Volume
8.1398523210128E+21
Space diagonal
34841710.610501
Perimeter
60347613
Area
1.7521783901504E+14
Altitude
17420855.305251
Surface area
1.7521783901504E+14
Volume
9.592907956742E+20
Height
9482712.5290492