205215 is an odd 6-digits composite number following 205214
and preceding 205216 . In scientific notation, it is written as 2.05215 × 10^5.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 109440 positive integers (up to 205215) that are relatively prime to 205215.
205215 has 8 divisors, whose sum is 328368
The reverse of 205215 is 512502
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 15
Digital Root 6
Name
two hundred five thousand two hundred fifteen
Scientific notation
2.05215 × 10^5
Engineering notation
2.05215 × 10^3
Prime Factorization
5 × 3 × 13681
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
205215
Product of the distinct prime numbers
The prime factorization of 205215 is 5 × 3 × 13681.
Since it has a total of 3 prime factors.
6 , 1 , 86 , 97 , 885 , 679 , 7454 , 7658 , 54761 , 23617 , 877884 , 510513 , 2898539 , 4730856 , 45106777 , 26968738 , 899601278 , 930783418 , 4368435440 , 2865938191
n×2
410430
n×3
615645
n×4
820860
n×5
1026075
n÷2
102607.5
n÷3
68405
n÷3
51303.75
n÷5
41043
n2
42113196225
n3
8642259563313375
n4
1.7735212962854E+21
n5
3.639531728172E+26
2 √n
453.00662246815
3 √n
58.984291518529
4 √n
21.283952228572
5 √n
11.546272964126
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
-205214
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 205215 can be divided by 8 positive divisors.
The sum of these divisors (counting 205215) is 1, the average is 0.125.
Base
System
Value
2
Binary
110010000110011111
3
Ternary
101102111120
4
Quaternary
302012133
5
Quinary
23031330
6
Senary
4222023
8
Octal
620637
10
Decimal
205215
12
Duodecimal
9a913
16
Hexadecimal
3219f
20
Vigesimal
15d0f
36
Base36
4ecf
md5
89b2167e538eeccb1171fd615d224f9a
sha1
1ac7c572717e1a1ac361cedcefd5f071e7748fab
sha256
8baa7cab67a89cfb819b7b93971f3a9e6313432c93854c5d620a3eab3bafa910
sha512
9f70b08ed83b9f94ca4179aef09bc06224d91ae24cc32d65a34e7ef5e079e879f464825f8cc62a8a38a1a4fa00af7a0c9381f8a27e73c87f827c66055a4e90a9
ripemd-160
e87923d27531978bd7b994d324b7d0c413529f3a
Diameter
410430
Circumference
1289403.8728129
Area
132302507879.65
Volume
3.6200612206029E+16
Surface area
529210031518.58
Circumference
1289403.8728129
Perimeter
820860
Area
42113196225
Diagonal
290217.83620239
Surface area
252679177350
Volume
8642259563313375
Space diagonal
355442.80647525
Perimeter
615645
Area
18235548882.704
Altitude
177721.40323762
Surface area
18235548882.704
Volume
1.0185000569989E+15
Height
96739.278734132