20797989 is an odd 8-digits composite number following 20797988
and preceding 20797990 . In scientific notation, it is written as 2.0797989 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 13015296 positive integers (up to 20797989) that are relatively prime to 20797989.
20797989 has 8 divisors, whose sum is 27752160
The reverse of 20797989 is 98979702
Previous prime number is 2147
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
twenty million seven hundred ninety-seven thousand nine hundred eighty-nine
Scientific notation
2.0797989 × 10^7
Engineering notation
2.0797989 × 10^6
Prime Factorization
3 × 2147 × 3229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20797989
Product of the distinct prime numbers
The prime factorization of 20797989 is 3 × 2147 × 3229.
Since it has a total of 3 prime factors.
4 , 3 , 37 , 68 , 832 , 236 , 4750 , 9051 , 82693 , 81442 , 34119 , 955694 , 1067694 , 5344149 , 80759350 , 54621602 , 881905329 , 919769431 , 337332283 , 1192496266
n×2
41595978
n×3
62393967
n×4
83191956
n×5
103989945
n÷2
10398994.5
n÷3
6932663
n÷3
5199497.25
n÷5
4159597.8
n2
432556346444121
n3
8.996302135225E+21
n4
1.8710499284909E+29
n5
3.8914075831204E+36
2 √n
4560.4812246078
3 √n
275.00491010517
4 √n
67.531335131239
5 √n
29.080660670084
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
-20797988
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 20797989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20797989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010101101000100101
3
Ternary
1110010122110220
4
Quaternary
1033111220211
5
Quinary
20311013424
6
Senary
2021434553
8
Octal
117255045
10
Decimal
20797989
12
Duodecimal
6b6ba59
16
Hexadecimal
13d5a25
20
Vigesimal
69jej9
36
Base36
cdrtx
md5
109cf020b0acf5c718eff7ec61f2668e
sha1
cd3f005917d5096df91a443e27c82f57db1734cb
sha256
115591f6dbf54f410e68a41e83862e00065042773c8666299bc52c2d87c7fa41
sha512
4c9b35530aa6ad0e2d3d1cd154bbfce012e00b8044d8f85e492cd95b7edbbd0ae671edb8ddfacc5632b445db1bc316e074e0a5401791fefb54fdc45341084887
ripemd-160
7c2338ee2817f7624d157b1eba200434ea7a9086
Diameter
41595978
Circumference
130677618.90368
Area
1.3589158402525E+15
Volume
3.7683622263329E+22
Surface area
5.43566336101E+15
Circumference
130677618.90368
Perimeter
83191956
Area
432556346444121
Diagonal
29412798.113886
Surface area
2595338078664726
Volume
8.996302135225E+21
Space diagonal
36023173.643259
Perimeter
62393967
Area
1.873023922944E+14
Altitude
18011586.821629
Surface area
1.873023922944E+14
Volume
1.0602243742368E+21
Height
9804266.0379621