808 (number)

808 is an even 3-digits composite number following 807 and preceding 809. In scientific notation, it is written as 8.08 × 10^2. The sum of its digits is 16. It has a total of 4 prime factors and 8 positive divisors. There are 400 positive integers (up to 808) that are relatively prime to 808.

Interesting facts

Basic properties

Name

Name eight hundred eight

Notation

Scientific notation 8.08 × 10^2
Engineering notation 8.08 × 10^0

Prime Factorization of 808

Prime Factorization 2 × 2 × 2 × 101

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 202
Product of the distinct prime numbers

The prime factorization of 808 is 2 × 2 × 2 × 101. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 808)

Multiplication

n×y
n×2 1616
n×3 2424
n×4 3232
n×5 4040

Division

n÷y
n÷2 404
n÷3 269.33333333333
n÷3 202
n÷5 161.6

Exponentiation

ny
n2 652864
n3 527514112
n4 426231402496
n5 344394973216768

Nth Root

y√n
2√n 28.425340807104
3√n 9.3140190156077
4√n 5.3315420665229
5√n 3.8148922162048

Divisors of 808

1, 2, 4, 8, 101, 202, 404, 808

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 -807
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 808 can be divided by 8 positive divisors. The sum of these divisors (counting 808) is 1, the average is 0.125.

Base conversion 808

Base System Value
2 Binary 1100101000
3 Ternary 1002221
4 Quaternary 30220
5 Quinary 11213
6 Senary 3424
8 Octal 1450
10 Decimal 808
12 Duodecimal 574
16 Hexadecimal 328
20 Vigesimal 208
36 Base36 mg

Cryptographic Hash Functions

md5 a8ecbabae151abacba7dbde04f761c37
sha1 38afd2ec2f9db9276c61839b6a900df67a7c9544
sha256 d72a11d264e746464ed45f73e1ec058e33ad40270c79324be171932d834d11f3
sha512 3bbe8731b352b195120ef1e2ad579c2179097029ce63e907cb1242060481a71d977927b447bc7c1efe726b61cca5fc841ff4389a0a9147154fc411014a24b30d
ripemd-160 b625b7bd3ea39351e71f866947b52aaa8a987258

808 as geometric shapes

Circle

Radius = n
Diameter 1616
Circumference 5076.8137282011
Area 2051032.7461932

Sphere

Radius = n
Volume 2209645945.2322
Surface area 8204130.984773
Circumference 5076.8137282011

Square

Length = n
Perimeter 3232
Area 652864
Diagonal 1142.6845583975

Cube

Length = n
Surface area 3917184
Volume 527514112
Space diagonal 1399.4970525157

Equilateral Triangle

Length = n
Perimeter 2424
Area 282698.40460816
Altitude 699.74852625783

Triangular Pyramid

Length = n
Surface area 282698.40460816
Volume 62168134.294467
Height 380.89485279915