20189785 is an odd 8-digits composite number following 20189784
and preceding 20189786 . In scientific notation, it is written as 2.0189785 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 12530880 positive integers (up to 20189785) that are relatively prime to 20189785.
20189785 has 12 divisors, whose sum is 24650028
The reverse of 20189785 is 58798102
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million one hundred eighty-nine thousand seven hundred eighty-five
Scientific notation
2.0189785 × 10^7
Engineering notation
2.0189785 × 10^6
Prime Factorization
77 × 5 × 229 × 229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
88165
Product of the distinct prime numbers
The prime factorization of 20189785 is 77 × 5 × 229 × 229.
Since it has a total of 4 prime factors.
8 , 10 , 1 , 91 , 666 , 66 , 4789 , 5019 , 38965 , 81015 , 471029 , 859900 , 1640890 , 1660258 , 85880068 , 43788238 , 291951238 , 277394460 , 4148208072 , 4373304829
n×2
40379570
n×3
60569355
n×4
80759140
n×5
100948925
n÷2
10094892.5
n÷3
6729928.3333333
n÷3
5047446.25
n÷5
4037957
n2
407627418346225
n3
8.2299099365153E+21
n4
1.6616011218761E+29
n5
3.3547369406437E+36
2 √n
4493.3044633098
3 √n
272.29765299806
4 √n
67.032115163628
5 √n
28.90855199944
1 , 5 , 77 , 229 , 385 , 1145 , 17633 , 52441 , 88165 , 262205 , 4037957 , 20189785
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
-20189784
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 20189785 can be divided by 12 positive divisors.
The sum of these divisors (counting 20189785) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101000001001001011001
3
Ternary
1101222202011211
4
Quaternary
1031001021121
5
Quinary
20132033120
6
Senary
2000423121
8
Octal
115011131
10
Decimal
20189785
12
Duodecimal
6917aa1
16
Hexadecimal
1341259
20
Vigesimal
663e95
36
Base36
c0qjd
md5
8eb7dd156cbb198c5d4ca52ecbfc6cab
sha1
60a9dc68ed5cbc109a4d31f9dd2fd961f0389fb2
sha256
3d3af68a617386bcd8fd6fcd46a9a77a01debb2b31461697dbeb475f37188054
sha512
48b868a7a42aad894d8bcc1cc94c3e29c878010b7d606497da6a02e82290d9ee0e100e66bd8d9d1d89130b903daf747220ef6db88ef797e90887b27b0f3f9a47
ripemd-160
1bcc9877b3cc5ee1d849c8ba5e6cbdabf1f46c3d
Diameter
40379570
Circumference
126856160.46711
Area
1.2805993028783E+15
Volume
3.447336612835E+22
Surface area
5.1223972115131E+15
Circumference
126856160.46711
Perimeter
80759140
Area
407627418346225
Diagonal
28552667.768397
Surface area
2445764510077350
Volume
8.2299099365153E+21
Space diagonal
34969733.413892
Perimeter
60569355
Area
1.7650784978345E+14
Altitude
17484866.706946
Surface area
1.7650784978345E+14
Volume
9.6990418744409E+20
Height
9517555.922799