201805 is an odd 6-digits composite number following 201804
and preceding 201806 . In scientific notation, it is written as 2.01805 × 10^5.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 161440 positive integers (up to 201805) that are relatively prime to 201805.
201805 has 4 divisors, whose sum is 242172
The reverse of 201805 is 508102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 16
Digital Root 7
Name
two hundred one thousand eight hundred five
Scientific notation
2.01805 × 10^5
Engineering notation
2.01805 × 10^3
Prime Factorization
5 × 40361
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
201805
Product of the distinct prime numbers
The prime factorization of 201805 is 5 × 40361.
Since it has a total of 2 prime factors.
3 , 4 , 88 , 73 , 410 , 245 , 9646 , 256 , 91990 , 4082 , 914550 , 330315 , 984350 , 3125643 , 50166962 , 36213005 , 403619708 , 414191628 , 5031843311 , 348671960
n×2
403610
n×3
605415
n×4
807220
n×5
1009025
n÷2
100902.5
n÷3
67268.333333333
n÷3
50451.25
n÷5
40361
n2
40725258025
n3
8218560695735125
n4
1.6585466412028E+21
n5
3.3470300492794E+26
2 √n
449.22711405257
3 √n
58.655756551314
4 √n
21.194978510312
5 √n
11.507643108287
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
-201804
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 201805 can be divided by 4 positive divisors.
The sum of these divisors (counting 201805) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001010001001101
3
Ternary
101020211021
4
Quaternary
301101031
5
Quinary
22424210
6
Senary
4154141
8
Octal
612115
10
Decimal
201805
12
Duodecimal
98951
16
Hexadecimal
3144d
20
Vigesimal
154a5
36
Base36
4bpp
md5
41570d6978ceefa4cf03303c4b34e961
sha1
b4b6d85c81fb85917eb89d58a686415cda74b2e8
sha256
34296a40bc38c2a9e031aea7ec4acb141746bf85dac2ff8bc09f0ab9f575dd4f
sha512
b038fc176893f41af166496801b83e3f938285c292a77e876ee32910cd8f1fece5411c7e742070ddb401059ddb0fec66190876f3c3ae61b96ea8c9fd2b0e534d
ripemd-160
e6982a361f2b2e5dd048b6c12e171a67d2b15f26
Diameter
403610
Circumference
1267978.2109154
Area
127942171426.89
Volume
3.4425826539738E+16
Surface area
511768685707.56
Circumference
1267978.2109154
Perimeter
807220
Area
40725258025
Diagonal
285395.3679547
Surface area
244351548150
Volume
8218560695735125
Space diagonal
349536.51322144
Perimeter
605415
Area
17634554012.663
Altitude
174768.25661072
Surface area
17634554012.663
Volume
9.6856666659126E+14
Height
95131.789318234