20115949 is an odd 8-digits composite number following 20115948
and preceding 20115950 . In scientific notation, it is written as 2.0115949 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 17242236 positive integers (up to 20115949) that are relatively prime to 20115949.
20115949 has 4 divisors, whose sum is 22989664
The reverse of 20115949 is 94951102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred fifteen thousand nine hundred forty-nine
Scientific notation
2.0115949 × 10^7
Engineering notation
2.0115949 × 10^6
Prime Factorization
7 × 2873707
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20115949
Product of the distinct prime numbers
The prime factorization of 20115949 is 7 × 2873707.
Since it has a total of 2 prime factors.
10 , 4 , 82 , 13 , 799 , 710 , 8369 , 856 , 31113 , 3406 , 838328 , 155944 , 8180825 , 5513400 , 65826599 , 80349273 , 286573795 , 75680226 , 8845635962 , 8646527984
n×2
40231898
n×3
60347847
n×4
80463796
n×5
100579745
n÷2
10057974.5
n÷3
6705316.3333333
n÷3
5028987.25
n÷5
4023189.8
n2
404651404170601
n3
8.1399470090742E+21
n4
1.6374275889724E+29
n5
3.2938409870962E+36
2 √n
4485.0807127631
3 √n
271.96530789518
4 √n
66.970745200895
5 √n
28.88737672559
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
-20115948
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 20115949 can be divided by 4 positive divisors.
The sum of these divisors (counting 20115949) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101111000111101101
3
Ternary
1101211222220011
4
Quaternary
1030233013231
5
Quinary
20122202244
6
Senary
1555053221
8
Octal
114570755
10
Decimal
20115949
12
Duodecimal
68a1211
16
Hexadecimal
132f1ed
20
Vigesimal
65e9h9
36
Base36
bz5kd
md5
716bfe5594b2379e2f4e3d62e28a7903
sha1
9db2592894094dd2bc05532dc1a4a57fa99f59ee
sha256
259d3c3023e11e2b8b672dfb07dbdf9dfe52efa0acbb5841b573e551253bbf79
sha512
baa00fc08a29b09546273089c7b2bb7d705bb400ccc39ab6499b1d33c6cc26e7d75c95eb60b470acfdd53e9795f6bad4214c74c6b050a9f027a24610686c539f
ripemd-160
05c0a5a4cc1521c5572fe640556708a2ccd11f43
Diameter
40231898
Circumference
126392235.19677
Area
1.2712498786072E+15
Volume
3.409653029909E+22
Surface area
5.0849995144286E+15
Circumference
126392235.19677
Perimeter
80463796
Area
404651404170601
Diagonal
28448247.895806
Surface area
2427908425023606
Volume
8.1399470090742E+21
Space diagonal
34841845.710464
Perimeter
60347847
Area
1.7521919784439E+14
Altitude
17420922.855232
Surface area
1.7521919784439E+14
Volume
9.5930195476925E+20
Height
9482749.2986018