20789989 is an odd 8-digits composite number following 20789988
and preceding 20789990 . In scientific notation, it is written as 2.0789989 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 18899980 positive integers (up to 20789989) that are relatively prime to 20789989.
20789989 has 4 divisors, whose sum is 22680000
The reverse of 20789989 is 98998702
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
twenty million seven hundred eighty-nine thousand nine hundred eighty-nine
Scientific notation
2.0789989 × 10^7
Engineering notation
2.0789989 × 10^6
Prime Factorization
11 × 1889999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20789989
Product of the distinct prime numbers
The prime factorization of 20789989 is 11 × 1889999.
Since it has a total of 2 prime factors.
1 , 9 , 79 , 22 , 206 , 807 , 4228 , 4408 , 66479 , 4440 , 270996 , 151464 , 160026 , 2925423 , 22649894 , 12852324 , 431690577 , 327427351 , 7780813954 , 1045032599
n×2
41579978
n×3
62369967
n×4
83159956
n×5
103949945
n÷2
10394994.5
n÷3
6929996.3333333
n÷3
5197497.25
n÷5
4157997.8
n2
432223642620121
n3
8.9859247756122E+21
n4
1.8681727723981E+29
n5
3.8839291388255E+36
2 √n
4559.6040398263
3 √n
274.96964513436
4 √n
67.524840168832
5 √n
29.078423135593
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
-20789988
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 20789989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20789989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010011101011100101
3
Ternary
1110010020111121
4
Quaternary
1033103223211
5
Quinary
20310234424
6
Senary
2021333541
8
Octal
117235345
10
Decimal
20789989
12
Duodecimal
6b672b1
16
Hexadecimal
13d3ae5
20
Vigesimal
69iej9
36
Base36
cdlnp
md5
41ae59d46002e0a43a458c5427605305
sha1
a3cf7e4aa0eb0a17cfb4762bd1ed6e5c9bb360a3
sha256
06aef411dbe59ba6a51308fb80ec6ba2f11651ec215f177edc36a8fafae453ca
sha512
3b2b4f52820592c4bceb0e11f4d5803959103c9d8545c29624edcdaf27a0784f1d037a938ed37ec401b5b9434ed9ec2d649d56b7018485703e4e4f03535542c9
ripemd-160
b04d2e7f756cf296bcdde25671e14fe8ca0e7bfd
Diameter
41579978
Circumference
130627353.42123
Area
1.3578706203632E+15
Volume
3.7640153681032E+22
Surface area
5.4314824814528E+15
Circumference
130627353.42123
Perimeter
83159956
Area
432223642620121
Diagonal
29401484.405387
Surface area
2593341855720726
Volume
8.9859247756122E+21
Space diagonal
36009317.236798
Perimeter
62369967
Area
1.8715832731264E+14
Altitude
18004658.618399
Surface area
1.8715832731264E+14
Volume
1.0590013906779E+21
Height
9800494.8017958