12908 is an even 5-digits composite number following 12907
and preceding 12909 . In scientific notation, it is written as 1.2908 × 10^4.
The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors.
There are 5520 positive integers (up to 12908) that are relatively prime to 12908.
12908 has 12 divisors, whose sum is 25872
The reverse of 12908 is 80921
Previous prime number is 7
Is Prime? no
Number parity even
Number length 5
Sum of Digits 20
Digital Root 2
Name
twelve thousand nine hundred eight
Scientific notation
1.2908 × 10^4
Engineering notation
1.2908 × 10^3
Prime Factorization
2 × 2 × 7 × 461
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6454
Product of the distinct prime numbers
The prime factorization of 12908 is 2 × 2 × 7 × 461.
Since it has a total of 4 prime factors.
4 , 3 , 66 , 40 , 61 , 173 , 3267 , 9100 , 66407 , 15149 , 295231 , 397239 , 5445630 , 1155103 , 26859245 , 8576583 , 890696204 , 735279742 , 9033597081 , 3806802391
n×2
25816
n×3
38724
n×4
51632
n×5
64540
n÷2
6454
n÷3
4302.6666666667
n÷3
3227
n÷5
2581.6
n2
166616464
n3
2150685317312
n4
27761046075863296
n5
3.5833958274724E+20
2 √n
113.61337949379
3 √n
23.45774813182
4 √n
10.658957711418
5 √n
6.6400567532922
1 , 2 , 4 , 7 , 14 , 28 , 461 , 922 , 1844 , 3227 , 6454 , 12908
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12908 can be divided by 12 positive divisors.
The sum of these divisors (counting 12908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11001001101100
3
Ternary
122201002
4
Quaternary
3021230
5
Quinary
403113
6
Senary
135432
8
Octal
31154
10
Decimal
12908
12
Duodecimal
7578
16
Hexadecimal
326c
20
Vigesimal
1c58
36
Base36
9yk
md5
b53b8bcccc2850c4f7bc651343e63dc0
sha1
2bdb21ca80ad57f61e1f06919eb6478cbf3f410c
sha256
14043558abb0b86ff3bca2dabe76bb330ef6b67e8c1104890fd491e5c65561f1
sha512
5eb127b564102f1616f4ae4e8cbae49340f28a7ee758b13d8b8e08e26d0bd668f3a96f390e3924f63d08fa3995ac33eaf3cd45bde59ec8011ff46c9dee05d701
ripemd-160
092dc8343a5ac8db082563779f4ec53b6e23f153
Diameter
25816
Circumference
81103.355945074
Area
523441059.26951
Volume
9008769590734.4
Surface area
2093764237.078
Circumference
81103.355945074
Perimeter
51632
Area
166616464
Diagonal
18254.668663112
Surface area
999698784
Volume
2150685317312
Space diagonal
22357.311824099
Perimeter
38724
Area
72147045.256368
Altitude
11178.65591205
Surface area
72147045.256368
Volume
253460695344.94
Height
6084.8895543706