205855 is an odd 6-digits composite number following 205854
and preceding 205856 . In scientific notation, it is written as 2.05855 × 10^5.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 151968 positive integers (up to 205855) that are relatively prime to 205855.
205855 has 8 divisors, whose sum is 266112
The reverse of 205855 is 558502
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 25
Digital Root 7
Name
two hundred five thousand eight hundred fifty-five
Scientific notation
2.05855 × 10^5
Engineering notation
2.05855 × 10^3
Prime Factorization
5 × 13 × 3167
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
205855
Product of the distinct prime numbers
The prime factorization of 205855 is 5 × 13 × 3167.
Since it has a total of 3 prime factors.
2 , 5 , 85 , 26 , 680 , 324 , 4372 , 8481 , 87336 , 33275 , 433461 , 989338 , 479555 , 4950611 , 61197755 , 67893290 , 744458216 , 136145825 , 3901032315 , 1738074396
n×2
411710
n×3
617565
n×4
823420
n×5
1029275
n÷2
102927.5
n÷3
68618.333333333
n÷3
51463.75
n÷5
41171
n2
42376281025
n3
8723369330401375
n4
1.7957491935098E+21
n5
3.6966395022995E+26
2 √n
453.71246401218
3 √n
59.045545603406
4 √n
21.300527317702
5 √n
11.553465823878
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
-205854
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 205855 can be divided by 8 positive divisors.
The sum of these divisors (counting 205855) is 1, the average is 0.125.
Base
System
Value
2
Binary
110010010000011111
3
Ternary
101110101021
4
Quaternary
302100133
5
Quinary
23041410
6
Senary
4225011
8
Octal
622037
10
Decimal
205855
12
Duodecimal
9b167
16
Hexadecimal
3241f
20
Vigesimal
15ecf
36
Base36
4eu7
md5
9205d85467dfe7b5c3da72b3c1fcd9d8
sha1
5923489842e233b2b19a84dc749008fe7adcaa8f
sha256
b62642e7762d5306ba8ea1f2bf527c8412c6885abb08e6e8132ca47ebad4c61b
sha512
2e03467b5d48a3aafe8ef3e23bb92e0b01a6b3f7e9ea9523499bf024bd20cc80779cef339987246f2b8f058ee20dd93eb18550c7d9b99961b2ee8fa4aaecd96d
ripemd-160
f6c941cac7fff652d2c15cd339227d0ba14af4d0
Diameter
411710
Circumference
1293425.1114095
Area
133129013154.6
Volume
3.6540364003919E+16
Surface area
532516052618.39
Circumference
1293425.1114095
Perimeter
823420
Area
42376281025
Diagonal
291122.93288231
Surface area
254257686150
Volume
8723369330401375
Space diagonal
356551.31899209
Perimeter
617565
Area
18349467942.779
Altitude
178275.65949605
Surface area
18349467942.779
Volume
1.0280589347203E+15
Height
97040.977627438