20897788 is an even 8-digits composite number following 20897787
and preceding 20897789 . In scientific notation, it is written as 2.0897788 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 6 positive divisors.
There are 10448892 positive integers (up to 20897788) that are relatively prime to 20897788.
20897788 has 6 divisors, whose sum is 36571136
The reverse of 20897788 is 88779802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty million eight hundred ninety-seven thousand seven hundred eighty-eight
Scientific notation
2.0897788 × 10^7
Engineering notation
2.0897788 × 10^6
Prime Factorization
2 × 2 × 5224447
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10448894
Product of the distinct prime numbers
The prime factorization of 20897788 is 2 × 2 × 5224447.
Since it has a total of 3 prime factors.
7 , 1 , 44 , 53 , 302 , 306 , 3686 , 8801 , 87656 , 11998 , 592395 , 376024 , 4007483 , 9590976 , 44313855 , 96740885 , 345035356 , 119021735 , 5712832150 , 4977961731
n×2
41795576
n×3
62693364
n×4
83591152
n×5
104488940
n÷2
10448894
n÷3
6965929.3333333
n÷3
5224447
n÷5
4179557.6
n2
436717543292944
n3
9.1264306356168E+21
n4
1.9072221261982E+29
n5
3.98567236622E+36
2 √n
4571.4098481759
3 √n
275.4440780959
4 √n
67.612201917819
5 √n
29.108515924015
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20897787
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20897788 can be divided by 6 positive divisors.
The sum of these divisors (counting 20897788) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001111101101111111111100
3
Ternary
1110022201101011
4
Quaternary
1033231333330
5
Quinary
20322212123
6
Senary
2023525004
8
Octal
117557774
10
Decimal
20897788
12
Duodecimal
6bb9764
16
Hexadecimal
13edffc
20
Vigesimal
6ac498
36
Base36
cfwu4
md5
992f0a72253a23010147f78c80869ac4
sha1
ba4e4865c571b64b4c6ef6550811f3f63a1790b5
sha256
7e2a8e8b983e9037a36033c4e3964c231afdcc477168fc95ce8f7eb3bc803ebc
sha512
762e314d7463f5aba99f80da6379607762b786eb64a0ba5311f985f29c8ae3027bcee4de3de703ed577d79680e28cca3e76b053ad00e0e9cf9aba686d99dc3a9
ripemd-160
214236a3f934fb4ab9d90853f64a58a91a296c81
Diameter
41795576
Circumference
131304674.51415
Area
1.3719886257029E+15
Volume
3.8228703251134E+22
Surface area
5.4879545028116E+15
Circumference
131304674.51415
Perimeter
83591152
Area
436717543292944
Diagonal
29553935.213198
Surface area
2620305259757664
Volume
9.1264306356168E+21
Space diagonal
36196030.581803
Perimeter
62693364
Area
1.8910424338501E+14
Altitude
18098015.290902
Surface area
1.8910424338501E+14
Volume
1.0755601650789E+21
Height
9851311.7377326