20512505 is an odd 8-digits composite number following 20512504
and preceding 20512506 . In scientific notation, it is written as 2.0512505 × 10^7.
The sum of its digits is 20. It has a total of 5 prime factors and 32 positive divisors.
There are 14353920 positive integers (up to 20512505) that are relatively prime to 20512505.
20512505 has 32 divisors, whose sum is 27941760
The reverse of 20512505 is 50521502
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million five hundred twelve thousand five hundred five
Scientific notation
2.0512505 × 10^7
Engineering notation
2.0512505 × 10^6
Prime Factorization
13 × 5 × 41 × 43 × 179
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20512505
Product of the distinct prime numbers
The prime factorization of 20512505 is 13 × 5 × 41 × 43 × 179.
Since it has a total of 5 prime factors.
6 , 7 , 94 , 4 , 315 , 99 , 9256 , 6815 , 55661 , 32284 , 437854 , 196956 , 1691988 , 5080446 , 704474 , 38460549 , 409035413 , 202661388 , 5067019615 , 9950301834
n×2
41025010
n×3
61537515
n×4
82050020
n×5
102562525
n÷2
10256252.5
n÷3
6837501.6666667
n÷3
5128126.25
n÷5
4102501
n2
420762861375025
n3
8.6309002977695E+21
n4
1.770413855125E+29
n5
3.6315623055321E+36
2 √n
4529.0733047722
3 √n
273.74082174909
4 √n
67.298390060775
5 √n
29.000383430106
1 , 5 , 13 , 41 , 43 , 65 , 179 , 205 , 215 , 533 , 559 , 895 , 1763 , 2327 , 2665 , 2795 , 7339 , 7697 , 8815 , 11635 , 22919 , 36695 , 38485 , 95407 , 100061 , 114595 , 315577 , 477035 , 500305 , 1577885 , 4102501 , 20512505
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20512504
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20512505 can be divided by 32 positive divisors.
The sum of these divisors (counting 20512505) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001110001111111011111001
3
Ternary
1102121010212102
4
Quaternary
1032033323321
5
Quinary
20222400010
6
Senary
2011353145
8
Octal
116177371
10
Decimal
20512505
12
Duodecimal
6a527b5
16
Hexadecimal
138fef9
20
Vigesimal
684155
36
Base36
c7njt
md5
06c66cab7c848c456eb5373b30cda1c0
sha1
e0f3a84c067546a8708d6c45b36058bd527fcd6e
sha256
f474db783cc1855a5dca3647acb3b01ccd17589e77c2114ab6400435e9457591
sha512
1e798e71412c61958de15c3534f25e3cd4b2a1b8f380af8e86d55afa96a131e2d5268ca9fae62585d4d229b3b0321e79af197f65490940debe957313fd78bb25
ripemd-160
ae58af5c5017dcbc20b961b30a47b3d59b3a3c8a
Diameter
41025010
Circumference
128883870.02945
Area
1.3218655141992E+15
Volume
3.6153030625785E+22
Surface area
5.2874620567968E+15
Circumference
128883870.02945
Perimeter
82050020
Area
420762861375025
Diagonal
29009062.769246
Surface area
2524577168250150
Volume
8.6309002977695E+21
Space diagonal
35528700.850511
Perimeter
61537515
Area
1.821956634599E+14
Altitude
17764350.425255
Surface area
1.821956634599E+14
Volume
1.0171613547163E+21
Height
9669687.5897486