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.
808 has 8 divisors, whose sum is 1530
The reverse of 808 is 808
Previous prime number is 2
Is Prime? no
Number parity even
Number length 3
Sum of Digits 16
Digital Root 7
Scientific notation
8.08 × 10^2
Engineering notation
8.08 × 10^0
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.
7 , 9 , 99 , 6 , 837 , 221 , 2691 , 8375 , 59355 , 76352 , 576901 , 270385 , 1607771 , 9678771 , 89409651 , 72905092 , 749857399 , 225928905 , 1620813899 , 8372105317
n×2
1616
n×3
2424
n×4
3232
n×5
4040
n÷2
404
n÷3
269.33333333333
n÷3
202
n÷5
161.6
n2
652864
n3
527514112
n4
426231402496
n5
344394973216768
2 √n
28.425340807104
3 √n
9.3140190156077
4 √n
5.3315420665229
5 √n
3.8148922162048
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
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
md5
a8ecbabae151abacba7dbde04f761c37
sha1
38afd2ec2f9db9276c61839b6a900df67a7c9544
sha256
d72a11d264e746464ed45f73e1ec058e33ad40270c79324be171932d834d11f3
sha512
3bbe8731b352b195120ef1e2ad579c2179097029ce63e907cb1242060481a71d977927b447bc7c1efe726b61cca5fc841ff4389a0a9147154fc411014a24b30d
ripemd-160
b625b7bd3ea39351e71f866947b52aaa8a987258
Diameter
1616
Circumference
5076.8137282011
Area
2051032.7461932
Volume
2209645945.2322
Surface area
8204130.984773
Circumference
5076.8137282011
Perimeter
3232
Area
652864
Diagonal
1142.6845583975
Surface area
3917184
Volume
527514112
Space diagonal
1399.4970525157
Perimeter
2424
Area
282698.40460816
Altitude
699.74852625783
Surface area
282698.40460816
Volume
62168134.294467
Height
380.89485279915