20185385 is an odd 8-digits composite number following 20185384
and preceding 20185386 . In scientific notation, it is written as 2.0185385 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 14680240 positive integers (up to 20185385) that are relatively prime to 20185385.
20185385 has 8 divisors, whose sum is 26424576
The reverse of 20185385 is 58358102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred eighty-five thousand three hundred eighty-five
Scientific notation
2.0185385 × 10^7
Engineering notation
2.0185385 × 10^6
Prime Factorization
11 × 5 × 367007
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20185385
Product of the distinct prime numbers
The prime factorization of 20185385 is 11 × 5 × 367007.
Since it has a total of 3 prime factors.
5 , 7 , 5 , 89 , 196 , 173 , 3911 , 1049 , 1458 , 91760 , 981591 , 492907 , 7061826 , 2736481 , 9799068 , 75475612 , 379562778 , 31754601 , 266524003 , 6027760401
n×2
40370770
n×3
60556155
n×4
80741540
n×5
100926925
n÷2
10092692.5
n÷3
6728461.6666667
n÷3
5046346.25
n÷5
4037077
n2
407449767598225
n3
8.2245304271307E+21
n4
1.6601531311585E+29
n5
3.3510830111389E+36
2 √n
4492.8148192419
3 √n
272.27787077124
4 √n
67.028462754579
5 √n
28.90729186994
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
-20185384
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 20185385 can be divided by 8 positive divisors.
The sum of these divisors (counting 20185385) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000000000100101001
3
Ternary
1101222112010212
4
Quaternary
1031000010221
5
Quinary
20131413020
6
Senary
2000350505
8
Octal
115000451
10
Decimal
20185385
12
Duodecimal
6915435
16
Hexadecimal
1340129
20
Vigesimal
663395
36
Base36
c0n55
md5
c84d52aece8cc53a2f3986c73d77c67d
sha1
ca1c9620342c01f098c26f246e6c2d2b2800534c
sha256
3b73b0443605d999a86ba481abbab2340c29a702a909b3d1b37b5f2ab8190f42
sha512
bb2f6a7d5b5a0adb43b895fa05be32a9aff1a5067f8b70a49b4c255075c23dda44ce97284befc8d8f75cfcf1d6646a04b99995929acdc37783ce8cbe8298dbe7
ripemd-160
9a81005c2b5bdf17bb56e547ed8e9633301b4afc
Diameter
40370770
Circumference
126828514.45176
Area
1.2800411965935E+15
Volume
3.4450832492133E+22
Surface area
5.1201647863738E+15
Circumference
126828514.45176
Perimeter
80741540
Area
407449767598225
Diagonal
28546445.228722
Surface area
2444698605589350
Volume
8.2245304271307E+21
Space diagonal
34962112.390339
Perimeter
60556155
Area
1.7643092475306E+14
Altitude
17481056.195169
Surface area
1.7643092475306E+14
Volume
9.692702061832E+20
Height
9515481.7429075