408 is an even 3-digits composite number following 407
and preceding 409 . In scientific notation, it is written as 4.08 × 10^2.
The sum of its digits is 12. It has a total of 5 prime factors and 16 positive divisors.
There are 128 positive integers (up to 408) that are relatively prime to 408.
408 has 16 divisors, whose sum is 1080
The reverse of 408 is 804
Previous prime number is 3
Is Prime? no
Number parity even
Number length 3
Sum of Digits 12
Digital Root 3
Scientific notation
4.08 × 10^2
Engineering notation
4.08 × 10^0
Prime Factorization
2 × 2 × 2 × 3 × 17
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
102
Product of the distinct prime numbers
The prime factorization of 408 is 2 × 2 × 2 × 3 × 17.
Since it has a total of 5 prime factors.
8 , 3 , 99 , 24 , 498 , 729 , 3084 , 6884 , 10819 , 64029 , 771572 , 208553 , 284205 , 720845 , 10175610 , 68342703 , 348203512 , 847573284 , 4083155064 , 2167756208
n×2
816
n×3
1224
n×4
1632
n×5
2040
n÷2
204
n÷3
136
n÷3
102
n÷5
81.6
n2
166464
n3
67917312
n4
27710263296
n5
11305787424768
2 √n
20.199009876724
3 √n
7.4168595385324
4 √n
4.4943308597303
5 √n
3.3276070260792
1 , 2 , 3 , 4 , 6 , 8 , 12 , 17 , 24 , 34 , 51 , 68 , 102 , 136 , 204 , 408
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-407
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 408 can be divided by 16 positive divisors.
The sum of these divisors (counting 408) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110011000
3
Ternary
120010
4
Quaternary
12120
5
Quinary
3113
6
Senary
1520
8
Octal
630
10
Decimal
408
12
Duodecimal
2a0
16
Hexadecimal
198
20
Vigesimal
108
36
Base36
bc
md5
0d0fd7c6e093f7b804fa0150b875b868
sha1
beba4d5d3ffb8fac7fe5ce87ac1eb2f75c4cd1a2
sha256
e6f47e008cc58b38596e6fdf2f50a0fea93fd10543e652522aeab3aa71355719
sha512
a4d9dc124962cf6e5d99068d6de00959675bf8bb330e96501ba303eda15f4c0d9870ef55743adf0cc10fd3a8ed61705b1c8bc59d93b637a3643f368055a9f176
ripemd-160
e9b835b86efdc73395f13c8cd3bbe6edc54ea184
Diameter
816
Circumference
2563.5396053293
Area
522962.07948717
Volume
284491371.24102
Surface area
2091848.3179487
Circumference
2563.5396053293
Perimeter
1632
Area
166464
Diagonal
576.99913344822
Surface area
998784
Volume
67917312
Space diagonal
706.6767294881
Perimeter
1224
Area
72081.026407786
Altitude
353.33836474405
Surface area
72081.026407786
Volume
8004131.9791937
Height
192.33304448274