2855 is an odd 4-digits composite number following 2854
and preceding 2856 . In scientific notation, it is written as 2.855 × 10^3.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 2280 positive integers (up to 2855) that are relatively prime to 2855.
2855 has 4 divisors, whose sum is 3432
The reverse of 2855 is 5582
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 4
Sum of Digits 20
Digital Root 2
Name
two thousand eight hundred fifty-five
Scientific notation
2.855 × 10^3
Engineering notation
2.855 × 10^3
Prime Factorization
5 × 571
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2855
Product of the distinct prime numbers
The prime factorization of 2855 is 5 × 571.
Since it has a total of 2 prime factors.
10 , 1 , 59 , 52 , 417 , 488 , 2656 , 3354 , 46938 , 27289 , 530664 , 359088 , 4880414 , 5655833 , 99363717 , 82384797 , 543575853 , 397279348 , 8571959585 , 1041448367
n×2
5710
n×3
8565
n×4
11420
n×5
14275
n÷2
1427.5
n÷3
951.66666666667
n÷3
713.75
n÷5
571
n2
8151025
n3
23271176375
n4
66439208550625
n5
189683940412034375
2 √n
53.43220002957
3 √n
14.18628577394
4 √n
7.3097332392893
5 √n
4.9104492001696
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
-2854
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 2855 can be divided by 4 positive divisors.
The sum of these divisors (counting 2855) is 1, the average is 0.25.
Base
System
Value
2
Binary
101100100111
3
Ternary
10220202
4
Quaternary
230213
5
Quinary
42410
6
Senary
21115
8
Octal
5447
10
Decimal
2855
12
Duodecimal
179b
16
Hexadecimal
b27
20
Vigesimal
72f
36
Base36
27b
md5
1a6727711b84fd1efbb87fc565199d13
sha1
c54515459d02d43144208e18f4c8acd73e3aa144
sha256
f22be6c15a5358aff79ed6e1aa62908339a08fc7c05b104636a5526fb9381039
sha512
7cabb1baf623d3edf7ef92d60521c7498b9c8f677ab145b18c956a5eaefddfb6a49686a67fd97092a04323571443abaf7e8c8931032b6722ad9fead71da3c04f
ripemd-160
f1f3c767934f548a522add07a57f3e281812f6d2
Diameter
5710
Circumference
17938.494051998
Area
25607200.259227
Volume
97478075653.456
Surface area
102428801.03691
Circumference
17938.494051998
Perimeter
11420
Area
8151025
Diagonal
4037.5797205752
Surface area
48906150
Volume
23271176375
Space diagonal
4945.0050556091
Perimeter
8565
Area
3529497.358441
Altitude
2472.5025278046
Surface area
3529497.358441
Volume
2742534436.8251
Height
1345.8599068584