390 (number)

390 is an even 3-digits composite number following 389 and preceding 391. In scientific notation, it is written as 3.90 × 10^2. The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors. There are 96 positive integers (up to 390) that are relatively prime to 390.

Interesting facts

Basic properties

Name

Name three hundred ninety

Notation

Scientific notation 3.90 × 10^2
Engineering notation 3.90 × 10^0

Prime Factorization of 390

Prime Factorization 2 × 15 × 13

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 390
Product of the distinct prime numbers

The prime factorization of 390 is 2 × 15 × 13. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 6, 100, 74, 632, 31, 8432, 9052, 83142, 65379, 303477, 6968, 4703099, 7228848, 24705909, 2731937, 159241714, 825825687, 9959577480, 5393079897

Basic calculations (n = 390)

Multiplication

n×y
n×2 780
n×3 1170
n×4 1560
n×5 1950

Division

n÷y
n÷2 195
n÷3 130
n÷3 97.5
n÷5 78

Exponentiation

ny
n2 152100
n3 59319000
n4 23134410000
n5 9022419900000

Nth Root

y√n
2√n 19.748417658131
3√n 7.3061435740628
4√n 4.4439191777227
5√n 3.2977134943663

Divisors of 390

1, 2, 13, 15, 26, 30, 195, 390

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 -389
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 390 can be divided by 8 positive divisors. The sum of these divisors (counting 390) is 1, the average is 0.125.

Base conversion 390

Base System Value
2 Binary 110000110
3 Ternary 112110
4 Quaternary 12012
5 Quinary 3030
6 Senary 1450
8 Octal 606
10 Decimal 390
12 Duodecimal 286
16 Hexadecimal 186
20 Vigesimal ja
36 Base36 au

Cryptographic Hash Functions

md5 a01a0380ca3c61428c26a231f0e49a09
sha1 f369b411c5eb95ab252e1ab9de70f787fa720784
sha256 48a1a756f2d83f1dc57bbf14052b70a6f40d0fceed6662812e34903a9fe90924
sha512 2c46a83aa60568cd9ca28a9db8ad666f8044b39f6526496f381bf4e42d3c8c3f1435eca8854a0d52e82426249b8bf8e7a4a9cd2c64ee1fbb3bc2428e6ee45bf4
ripemd-160 cf25def47faa53ed618af3b965c6531b76041945

390 as geometric shapes

Circle

Radius = n
Diameter 780
Circumference 2450.4422698
Area 477836.24261101

Sphere

Radius = n
Volume 248474846.15772
Surface area 1911344.970444
Circumference 2450.4422698

Square

Length = n
Perimeter 1560
Area 152100
Diagonal 551.54328932551

Cube

Length = n
Surface area 912600
Volume 59319000
Space diagonal 675.49981495186

Equilateral Triangle

Length = n
Perimeter 1170
Area 65861.231957807
Altitude 337.74990747593

Triangular Pyramid

Length = n
Surface area 65861.231957807
Volume 6990811.1922008
Height 183.8477631085