20157209 is an odd 8-digits prime number following 20157208
and preceding 20157210 . In scientific notation, it is written as 2.0157209 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 20157208 positive integers (up to 20157209) that are relatively prime to 20157209.
20157209 has 2 divisors, whose sum is 20157210
The reverse of 20157209 is 90275102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred fifty-seven thousand two hundred nine
Scientific notation
2.0157209 × 10^7
Engineering notation
2.0157209 × 10^6
Prime Factorization
20157209
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20157209
Product of the distinct prime numbers
The prime factorization of 20157209 is 20157209.
Since it has a total of 1 prime factors.
7 , 7 , 41 , 72 , 820 , 342 , 4809 , 5040 , 83363 , 85102 , 422346 , 456723 , 8023689 , 4464349 , 87373127 , 74837996 , 478149057 , 144771970 , 5186407435 , 4092585221
n×2
40314418
n×3
60471627
n×4
80628836
n×5
100786045
n÷2
10078604.5
n÷3
6719069.6666667
n÷3
5039302.25
n÷5
4031441.8
n2
406313074669681
n3
8.1901375655494E+21
n4
1.6509031464753E+29
n5
3.327759976226E+36
2 √n
4489.6780508183
3 √n
272.15112438846
4 √n
67.005059889671
5 √n
28.899217245611
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20157210
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10078605
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4489.6781621849
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999007799
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20157209 can be divided by 2 positive divisors.
The sum of these divisors (counting 20157209) is 20157210, the average is 10078605.
Base
System
Value
2
Binary
1001100111001001100011001
3
Ternary
1101221002111022
4
Quaternary
1030321030121
5
Quinary
20130012314
6
Senary
2000012225
8
Octal
114711431
10
Decimal
20157209
12
Duodecimal
6901075
16
Hexadecimal
1339319
20
Vigesimal
65jd09
36
Base36
c01eh
md5
d19717105436518bd1aa7396f8cd29a9
sha1
0c5d220cf1f721e2d0174c6e68d09ba0a68aa7c1
sha256
a06ea4e558a0e25cd870d9b1bff337078838ddb7671b5ca5a9c4ff9423272465
sha512
eb6ff1189d3960bff19fccf79962ae4a1ae133d722448dfdd55c1cf0d3bd2073bc44ef38b42b3c1fd03486b2bfc7ad33efc30038504465f62b9c7f233ec3ecfd
ripemd-160
3f401e670cc9ba14edae517f11719031d0814eef
Diameter
40314418
Circumference
126651479.42255
Area
1.2764701704398E+15
Volume
3.4306768010426E+22
Surface area
5.105880681759E+15
Circumference
126651479.42255
Perimeter
80628836
Area
406313074669681
Diagonal
28506598.347389
Surface area
2437878448018086
Volume
8.1901375655494E+21
Space diagonal
34913310.126785
Perimeter
60471627
Area
1.7593872227685E+14
Altitude
17456655.063392
Surface area
1.7593872227685E+14
Volume
9.6521696857511E+20
Height
9502199.4491297