20512161 is an odd 8-digits composite number following 20512160
and preceding 20512162 . In scientific notation, it is written as 2.0512161 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 13356504 positive integers (up to 20512161) that are relatively prime to 20512161.
20512161 has 8 divisors, whose sum is 23321760
The reverse of 20512161 is 16121502
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million five hundred twelve thousand one hundred sixty-one
Scientific notation
2.0512161 × 10^7
Engineering notation
2.0512161 × 10^6
Prime Factorization
9 × 43 × 53003
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20512161
Product of the distinct prime numbers
The prime factorization of 20512161 is 9 × 43 × 53003.
Since it has a total of 3 prime factors.
9 , 10 , 9 , 72 , 228 , 39 , 6649 , 4241 , 17379 , 85132 , 783248 , 190910 , 8483832 , 2221339 , 87851277 , 49621511 , 661964795 , 394942631 , 414252915 , 4997418825
n×2
41024322
n×3
61536483
n×4
82048644
n×5
102560805
n÷2
10256080.5
n÷3
6837387
n÷3
5128040.25
n÷5
4102432.2
n2
420748748889921
n3
8.6304660777786E+21
n4
1.7702950969243E+29
n5
3.6312578045623E+36
2 √n
4529.0353277492
3 √n
273.7392915058
4 √n
67.29810790616
5 √n
29.000286160671
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
-20512160
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 20512161 can be divided by 8 positive divisors.
The sum of these divisors (counting 20512161) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111110110100001
3
Ternary
1102121010101200
4
Quaternary
1032033312201
5
Quinary
20222342121
6
Senary
2011351413
8
Octal
116176641
10
Decimal
20512161
12
Duodecimal
6a52569
16
Hexadecimal
138fda1
20
Vigesimal
684081
36
Base36
c7na9
md5
e0da65d13290ed2c70f3b3930f99c463
sha1
35ca1244f731f8c5052d16b0ffbf86319b34359c
sha256
e2045d69d1bdd6a29aaecf7bfb873d60d5edb4f13a8725e30f0e18eaee5b20e0
sha512
ed60e585bbe87a260bce5df4ce452716a5dd6e10b319f764eb65a5b8c8efafd5b0e0ab22acf8553bb6972473498940f3bdfa473dec0c963e405aa957dbaf2c37
ripemd-160
daa62e50c6203048b1fe066deb1613f58a68b655
Diameter
41024322
Circumference
128881708.6137
Area
1.3218211785197E+15
Volume
3.615121176934E+22
Surface area
5.2872847140787E+15
Circumference
128881708.6137
Perimeter
82048644
Area
420748748889921
Diagonal
29008576.27978
Surface area
2524492493339526
Volume
8.6304660777786E+21
Space diagonal
35528105.025033
Perimeter
61536483
Area
1.821895525746E+14
Altitude
17764052.512516
Surface area
1.821895525746E+14
Volume
1.0171101813996E+21
Height
9669525.4265935