20130815 is an odd 8-digits composite number following 20130814
and preceding 20130816 . In scientific notation, it is written as 2.0130815 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 15944800 positive integers (up to 20130815) that are relatively prime to 20130815.
20130815 has 8 divisors, whose sum is 24396768
The reverse of 20130815 is 51803102
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred thirty thousand eight hundred fifteen
Scientific notation
2.0130815 × 10^7
Engineering notation
2.0130815 × 10^6
Prime Factorization
5 × 101 × 39863
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20130815
Product of the distinct prime numbers
The prime factorization of 20130815 is 5 × 101 × 39863.
Since it has a total of 3 prime factors.
10 , 1 , 52 , 39 , 46 , 277 , 2163 , 6084 , 91908 , 68036 , 744900 , 751022 , 1264512 , 2644610 , 67445450 , 28624760 , 126746284 , 131636211 , 8736273542 , 7075189838
n×2
40261630
n×3
60392445
n×4
80523260
n×5
100654075
n÷2
10065407.5
n÷3
6710271.6666667
n÷3
5032703.75
n÷5
4026163
n2
405249712564225
n3
8.1580069924336E+21
n4
1.6422732953339E+29
n5
3.3060299887806E+36
2 √n
4486.7376789824
3 √n
272.0322869329
4 √n
66.983114879665
5 √n
28.89164510839
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
-20130814
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 20130815 can be divided by 8 positive divisors.
The sum of these divisors (counting 20130815) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010101111111111
3
Ternary
1101212202021202
4
Quaternary
1030302233333
5
Quinary
20123141230
6
Senary
1555250115
8
Octal
114625777
10
Decimal
20130815
12
Duodecimal
68a993b
16
Hexadecimal
1332bff
20
Vigesimal
65g70f
36
Base36
bzh1b
md5
7a3b937f86e84e0ef033aa159a290afe
sha1
a63785376a99a4cd4035b9628b942f96c5dd4daa
sha256
966095fd177f954c69d9186196c3615fc29fa8e119f3548d7433edaacd01b716
sha512
d3e3a3f09d1d9f6460f9fdc92be47a9039946bd6402002bd67a74a3badaeabd9d9f80820f223a0a5f92f9c2326963d92f646d493a1ac761e7ae09e0ad4239fe5
ripemd-160
a73d384d9816d80668f3658ad6d0d87d579efd6d
Diameter
40261630
Circumference
126485641.02955
Area
1.2731295198611E+15
Volume
3.4172179780485E+22
Surface area
5.0925180794446E+15
Circumference
126485641.02955
Perimeter
80523260
Area
405249712564225
Diagonal
28469271.594624
Surface area
2431498275385350
Volume
8.1580069924336E+21
Space diagonal
34867594.37777
Perimeter
60392445
Area
1.7547827297848E+14
Altitude
17433797.188885
Surface area
1.7547827297848E+14
Volume
9.6143034421951E+20
Height
9489757.1982079