385 is an odd 3-digits composite number following 384
and preceding 386 . In scientific notation, it is written as 3.85 × 10^2.
The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors.
There are 240 positive integers (up to 385) that are relatively prime to 385.
385 has 8 divisors, whose sum is 576
The reverse of 385 is 583
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 3
Sum of Digits 16
Digital Root 7
Name
three hundred eighty-five
Scientific notation
3.85 × 10^2
Engineering notation
3.85 × 10^0
Prime Factorization
7 × 5 × 11
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
385
Product of the distinct prime numbers
The prime factorization of 385 is 7 × 5 × 11.
Since it has a total of 3 prime factors.
3 , 2 , 92 , 1 , 119 , 339 , 3557 , 761 , 4228 , 10778 , 200602 , 638640 , 6881451 , 8004075 , 59912458 , 28845198 , 84791416 , 36657018 , 8092998732 , 733853405
n×2
770
n×3
1155
n×4
1540
n×5
1925
n÷2
192.5
n÷3
128.33333333333
n÷3
96.25
n÷5
77
n2
148225
n3
57066625
n4
21970650625
n5
8458700490625
2 √n
19.621416870349
3 √n
7.2747863487915
4 √n
4.4296068527973
5 √n
3.2892141197204
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
-384
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 385 can be divided by 8 positive divisors.
The sum of these divisors (counting 385) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000001
3
Ternary
112021
4
Quaternary
12001
5
Quinary
3020
6
Senary
1441
8
Octal
601
10
Decimal
385
12
Duodecimal
281
16
Hexadecimal
181
20
Vigesimal
j5
36
Base36
ap
md5
dc912a253d1e9ba40e2c597ed2376640
sha1
855679730970f8a0fca717e82e76cc93053c09c1
sha256
131b0c35e2d7edef9dd63f48eff39341ef0a5f770538aa4e0017f41b9cdb135d
sha512
fc7d1706a4f29b2ece9cc2aed1a18b186680bc8e3ea296f9117e0a56be96107fcc4e4b4210b2e847b63a06f2234052771328b2c107e171a22482b4b45889cfa5
ripemd-160
147a22c31c8e6ee1f2b46206b74f8e35c2964069
Diameter
770
Circumference
2419.0263432641
Area
465662.57107835
Volume
239040119.82022
Surface area
1862650.2843134
Circumference
2419.0263432641
Perimeter
1540
Area
148225
Diagonal
544.47222151364
Surface area
889350
Volume
57066625
Space diagonal
666.83956091402
Perimeter
1155
Area
64183.307737974
Altitude
333.41978045701
Surface area
64183.307737974
Volume
6725366.2528216
Height
181.49074050455