20897797 is an odd 8-digits composite number following 20897796
and preceding 20897798 . In scientific notation, it is written as 2.0897797 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 20829420 positive integers (up to 20897797) that are relatively prime to 20897797.
20897797 has 4 divisors, whose sum is 20966176
The reverse of 20897797 is 79779802
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty million eight hundred ninety-seven thousand seven hundred ninety-seven
Scientific notation
2.0897797 × 10^7
Engineering notation
2.0897797 × 10^6
Prime Factorization
307 × 68071
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20897797
Product of the distinct prime numbers
The prime factorization of 20897797 is 307 × 68071.
Since it has a total of 2 prime factors.
9 , 6 , 2 , 49 , 897 , 656 , 1347 , 6651 , 29232 , 86144 , 809940 , 626209 , 6953404 , 7861251 , 83981679 , 82340070 , 270535792 , 995112097 , 631255266 , 6415930491
n×2
41795594
n×3
62693391
n×4
83591188
n×5
104488985
n÷2
10448898.5
n÷3
6965932.3333333
n÷3
5224449.25
n÷5
4179559.4
n2
436717919453209
n3
9.1264424269955E+21
n4
1.9072254117154E+29
n5
3.985680948727E+36
2 √n
4571.4108325549
3 √n
275.44411763751
4 √n
67.612209197414
5 √n
29.108518431234
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
-20897796
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 20897797 can be divided by 4 positive divisors.
The sum of these divisors (counting 20897797) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111101110000000000101
3
Ternary
1110022201101111
4
Quaternary
1033232000011
5
Quinary
20322212142
6
Senary
2023525021
8
Octal
117560005
10
Decimal
20897797
12
Duodecimal
6bb9771
16
Hexadecimal
13ee005
20
Vigesimal
6ac49h
36
Base36
cfwud
md5
13f464594da55a62a4ee371b7d8a0ee6
sha1
9b1ee34d7fc6e88965349bd28117517b3c09437c
sha256
b3fcfe4b65577d0725e059b571d86b1129c3da54cebd77decdc539c254c1b756
sha512
2989fb2f5cedc1a3bef3ac45ba74bf80be87d09352a0708fba02aaaa527284f8a939747e952be2eaff0577be4eb085e0f5ce5a05ff42174c12e93a0c3c31dd65
ripemd-160
952f4ee889c30714825b842ea5f01bae7fceb5a1
Diameter
41795594
Circumference
131304731.06282
Area
1.3719898074452E+15
Volume
3.8228752642746E+22
Surface area
5.4879592297809E+15
Circumference
131304731.06282
Perimeter
83591188
Area
436717919453209
Diagonal
29553947.94112
Surface area
2620307516719254
Volume
9.1264424269955E+21
Space diagonal
36196046.17026
Perimeter
62693391
Area
1.8910440626718E+14
Altitude
18098023.08513
Surface area
1.8910440626718E+14
Volume
1.0755615547062E+21
Height
9851315.9803733