20205561 is an odd 8-digits composite number following 20205560
and preceding 20205562 . In scientific notation, it is written as 2.0205561 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13216112 positive integers (up to 20205561) that are relatively prime to 20205561.
20205561 has 8 divisors, whose sum is 27449280
The reverse of 20205561 is 16550202
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million two hundred five thousand five hundred sixty-one
Scientific notation
2.0205561 × 10^7
Engineering notation
2.0205561 × 10^6
Prime Factorization
3 × 53 × 127079
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20205561
Product of the distinct prime numbers
The prime factorization of 20205561 is 3 × 53 × 127079.
Since it has a total of 3 prime factors.
9 , 10 , 60 , 36 , 487 , 750 , 9285 , 265 , 31703 , 33641 , 182796 , 173004 , 4264572 , 93449 , 23747741 , 96799091 , 717715432 , 653002345 , 8048235980 , 6171840481
n×2
40411122
n×3
60616683
n×4
80822244
n×5
101027805
n÷2
10102780.5
n÷3
6735187
n÷3
5051390.25
n÷5
4041112.2
n2
408264695324721
n3
8.2492172055301E+21
n4
1.6668006144859E+29
n5
3.3678641490832E+36
2 √n
4495.0596214066
3 √n
272.36855765564
4 √n
67.04520580479
5 √n
28.913068331232
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
-20205560
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 20205561 can be divided by 8 positive divisors.
The sum of these divisors (counting 20205561) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000100111111111001
3
Ternary
1102000112211010
4
Quaternary
1031010333321
5
Quinary
20133034221
6
Senary
2001024133
8
Octal
115047771
10
Decimal
20205561
12
Duodecimal
6925049
16
Hexadecimal
1344ff9
20
Vigesimal
665di1
36
Base36
c12pl
md5
25288c33a95c9622bffef25bb9f5c36b
sha1
f057558e812e6f67855a46569a425e5be81426b3
sha256
72f052fcc2ad9da9a67e691ef428b3e9bc59abf1d76ca0d98218da44b24e67d0
sha512
f28875bad5f62b913b18845ff68d1eb704c98bafd50ba9117cca1ed8e61dae9a8732ac68e3cccfadfcf247b5cc9e994d3c95f8354420fde1136174eff432294c
ripemd-160
0f6f03c7064c66c092afe2b61a4483e3992996f3
Diameter
40411122
Circumference
126955283.99852
Area
1.2826013675522E+15
Volume
3.455424022768E+22
Surface area
5.1304054702089E+15
Circumference
126955283.99852
Perimeter
80822244
Area
408264695324721
Diagonal
28574978.401557
Surface area
2449588171948326
Volume
8.2492172055301E+21
Space diagonal
34997058.247432
Perimeter
60616683
Area
1.7678379880976E+14
Altitude
17498529.123716
Surface area
1.7678379880976E+14
Volume
9.7217957091851E+20
Height
9524992.800519