20778820 is an even 8-digits composite number following 20778819
and preceding 20778821 . In scientific notation, it is written as 2.0778820 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 8311520 positive integers (up to 20778820) that are relatively prime to 20778820.
20778820 has 12 divisors, whose sum is 43635564
The reverse of 20778820 is 02887702
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million seven hundred seventy-eight thousand eight hundred twenty
Scientific notation
2.0778820 × 10^7
Engineering notation
2.0778820 × 10^6
Prime Factorization
2 × 2 × 5 × 1038941
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10389410
Product of the distinct prime numbers
The prime factorization of 20778820 is 2 × 2 × 5 × 1038941.
Since it has a total of 4 prime factors.
4 , 1 , 21 , 39 , 451 , 766 , 6584 , 376 , 15069 , 26465 , 195998 , 365124 , 4647094 , 2448486 , 8110862 , 2530232 , 205402309 , 767305981 , 8465724312 , 1008237397
n×2
41557640
n×3
62336460
n×4
83115280
n×5
103894100
n÷2
10389410
n÷3
6926273.3333333
n÷3
5194705
n÷5
4155764
n2
431759360592400
n3
8.9714500370646E+21
n4
1.8641614545916E+29
n5
3.8735075315897E+36
2 √n
4558.3790978812
3 √n
274.92039569193
4 √n
67.515769253421
5 √n
29.075298105345
1 , 2 , 4 , 5 , 10 , 20 , 1038941 , 2077882 , 4155764 , 5194705 , 10389410 , 20778820
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20778819
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20778820 can be divided by 12 positive divisors.
The sum of these divisors (counting 20778820) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010000111101000100
3
Ternary
1110002200011221
4
Quaternary
1033100331010
5
Quinary
20304410240
6
Senary
2021210124
8
Octal
117207504
10
Decimal
20778820
12
Duodecimal
6b60944
16
Hexadecimal
13d0f44
20
Vigesimal
69h710
36
Base36
cdd1g
md5
7ceb7f013048b5c7dd1218a885b6d6a4
sha1
0d5632a270f738ec45f41396b15e7915e7ca5a57
sha256
8966f3182d8dd7c4cb172841bcaf0761324c0e2bd911d06d19ad699fd38defad
sha512
62121446fb6fe9dd7b90ee6ebac03f4410056d461d75a799d35ae8cc214d450e4ebd18647d869641395a04082d86f35b800eb736d124461a16e934b5ea78fed9
ripemd-160
4c86e8beb9cef957310f8e91a5a9ce3f467fdcf8
Diameter
41557640
Circumference
130557176.52453
Area
1.3564120353557E+15
Volume
3.7579522037987E+22
Surface area
5.4256481414228E+15
Circumference
130557176.52453
Perimeter
83115280
Area
431759360592400
Diagonal
29385689.054109
Surface area
2590556163554400
Volume
8.9714500370646E+21
Space diagonal
35989971.961328
Perimeter
62336460
Area
1.8695728729737E+14
Altitude
17994985.980664
Surface area
1.8695728729737E+14
Volume
1.0572955263808E+21
Height
9795229.6847031