385 (number)

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.

Interesting facts

Basic properties

Name

Name three hundred eighty-five

Notation

Scientific notation 3.85 × 10^2
Engineering notation 3.85 × 10^0

Prime Factorization of 385

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.

Most popular turbo-numbers

Basic calculations (n = 385)

Multiplication

n×y
n×2 770
n×3 1155
n×4 1540
n×5 1925

Division

n÷y
n÷2 192.5
n÷3 128.33333333333
n÷3 96.25
n÷5 77

Exponentiation

ny
n2 148225
n3 57066625
n4 21970650625
n5 8458700490625

Nth Root

y√n
2√n 19.621416870349
3√n 7.2747863487915
4√n 4.4296068527973
5√n 3.2892141197204

Divisors of 385

1, 5, 7, 11, 35, 55, 77, 385

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 conversion 385

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

Cryptographic Hash Functions

md5 dc912a253d1e9ba40e2c597ed2376640
sha1 855679730970f8a0fca717e82e76cc93053c09c1
sha256 131b0c35e2d7edef9dd63f48eff39341ef0a5f770538aa4e0017f41b9cdb135d
sha512 fc7d1706a4f29b2ece9cc2aed1a18b186680bc8e3ea296f9117e0a56be96107fcc4e4b4210b2e847b63a06f2234052771328b2c107e171a22482b4b45889cfa5
ripemd-160 147a22c31c8e6ee1f2b46206b74f8e35c2964069

385 as geometric shapes

Circle

Radius = n
Diameter 770
Circumference 2419.0263432641
Area 465662.57107835

Sphere

Radius = n
Volume 239040119.82022
Surface area 1862650.2843134
Circumference 2419.0263432641

Square

Length = n
Perimeter 1540
Area 148225
Diagonal 544.47222151364

Cube

Length = n
Surface area 889350
Volume 57066625
Space diagonal 666.83956091402

Equilateral Triangle

Length = n
Perimeter 1155
Area 64183.307737974
Altitude 333.41978045701

Triangular Pyramid

Length = n
Surface area 64183.307737974
Volume 6725366.2528216
Height 181.49074050455