20185009 is an odd 8-digits composite number following 20185008
and preceding 20185010 . In scientific notation, it is written as 2.0185009 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 18632304 positive integers (up to 20185009) that are relatively prime to 20185009.
20185009 has 4 divisors, whose sum is 21737716
The reverse of 20185009 is 90058102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred eighty-five thousand nine
Scientific notation
2.0185009 × 10^7
Engineering notation
2.0185009 × 10^6
Prime Factorization
13 × 1552693
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20185009
Product of the distinct prime numbers
The prime factorization of 20185009 is 13 × 1552693.
Since it has a total of 2 prime factors.
4 , 7 , 1 , 58 , 452 , 823 , 7705 , 9486 , 57857 , 79954 , 301667 , 156365 , 368826 , 9992537 , 67144656 , 96605575 , 75803959 , 78762047 , 7353092702 , 4910132581
n×2
40370018
n×3
60555027
n×4
80740036
n×5
100925045
n÷2
10092504.5
n÷3
6728336.3333333
n÷3
5046252.25
n÷5
4037001.8
n2
407434588330081
n3
8.224070832354E+21
n4
1.660029437677E+29
n5
3.3507709139776E+36
2 √n
4492.7729744558
3 √n
272.27618015672
4 √n
67.028150611931
5 √n
28.907184175955
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
-20185008
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 20185009 can be divided by 4 positive divisors.
The sum of these divisors (counting 20185009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111111111110110001
3
Ternary
1101222111121221
4
Quaternary
1030333332301
5
Quinary
20131410014
6
Senary
2000345041
8
Octal
114777661
10
Decimal
20185009
12
Duodecimal
6915181
16
Hexadecimal
133ffb1
20
Vigesimal
6632a9
36
Base36
c0mup
md5
d84a8ddf8b955151d72794c991cb8946
sha1
9cee06da1e00138c83d89e989533106967247282
sha256
1e18947ac54f37f2d996a6896ff511e450e64388616d41a3e71f8bd7841fb9bf
sha512
56d48cf50e006bee9b14dec6223db8345db4d0d15e3ee71694ce43374ca637b800c918b8ce858f89649a428a6aebff2232fce0e59412a1bb5dbd2848c4308e12
ripemd-160
7d2d545297ba7462b556e7c08a6d279d986a4925
Diameter
40370018
Circumference
126826151.97409
Area
1.2799935095162E+15
Volume
3.4448907346034E+22
Surface area
5.1199740380647E+15
Circumference
126826151.97409
Perimeter
80740036
Area
407434588330081
Diagonal
28545913.484423
Surface area
2444607529980486
Volume
8.224070832354E+21
Space diagonal
34961461.139235
Perimeter
60555027
Area
1.7642435193715E+14
Altitude
17480730.569618
Surface area
1.7642435193715E+14
Volume
9.6921604241933E+20
Height
9515304.4948077