20216561 is an odd 8-digits composite number following 20216560
and preceding 20216562 . In scientific notation, it is written as 2.0216561 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20200932 positive integers (up to 20216561) that are relatively prime to 20216561.
20216561 has 4 divisors, whose sum is 20232192
The reverse of 20216561 is 16561202
Previous prime number is 1423
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million two hundred sixteen thousand five hundred sixty-one
Scientific notation
2.0216561 × 10^7
Engineering notation
2.0216561 × 10^6
Prime Factorization
1423 × 14207
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20216561
Product of the distinct prime numbers
The prime factorization of 20216561 is 1423 × 14207.
Since it has a total of 2 prime factors.
10 , 2 , 14 , 49 , 608 , 3 , 8282 , 1816 , 47972 , 89615 , 944910 , 606336 , 2974732 , 9540093 , 92262517 , 57728851 , 624798859 , 471991414 , 6549687259 , 2973346736
n×2
40433122
n×3
60649683
n×4
80866244
n×5
101082805
n÷2
10108280.5
n÷3
6738853.6666667
n÷3
5054140.25
n÷5
4043312.2
n2
408709338666721
n3
8.2626972764254E+21
n4
1.6704332351339E+29
n5
3.3770415394512E+36
2 √n
4496.2830204514
3 √n
272.41797491937
4 √n
67.054328871829
5 √n
28.916215727302
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20216560
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20216561 can be divided by 4 positive divisors.
The sum of these divisors (counting 20216561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000111101011110001
3
Ternary
1102001002220112
4
Quaternary
1031013223301
5
Quinary
20133412221
6
Senary
2001151105
8
Octal
115075361
10
Decimal
20216561
12
Duodecimal
692b495
16
Hexadecimal
1347af1
20
Vigesimal
667181
36
Base36
c1b75
md5
5ed784810152844423b70bfd9d9df068
sha1
d30fd2541862cc2b8898bef2dabdb9a60cca7fc6
sha256
b3a9f4d0654e13180ede101a34d8e1cc79290a8f25a2e23ed3a8a8a836e80750
sha512
f1a1320a477670da0eca0a1a4d61742db8686a5e0ae1050ef601b23ea0d75b555d3955aef2f71db22a576f84189c33a5e1b2648e1793fbde90992faf6dde4e7d
ripemd-160
ce5a1bc23bb74283abc55bf8fb8003795ac23824
Diameter
40433122
Circumference
127024399.0369
Area
1.2839982558089E+15
Volume
3.4610705416606E+22
Surface area
5.1359930232357E+15
Circumference
127024399.0369
Perimeter
80866244
Area
408709338666721
Diagonal
28590534.750743
Surface area
2452256032000326
Volume
8.2626972764254E+21
Space diagonal
35016110.806315
Perimeter
60649683
Area
1.7697633502466E+14
Altitude
17508055.403158
Surface area
1.7697633502466E+14
Volume
9.7376821250867E+20
Height
9530178.2502477