28686908 is an even 8-digits composite number following 28686907
and preceding 28686909 . In scientific notation, it is written as 2.8686908 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 12 positive divisors.
There are 14310192 positive integers (up to 28686908) that are relatively prime to 28686908.
28686908 has 12 divisors, whose sum is 50318520
The reverse of 28686908 is 80968682
Previous prime number is 443
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-eight million six hundred eighty-six thousand nine hundred eight
Scientific notation
2.8686908 × 10^7
Engineering notation
2.8686908 × 10^6
Prime Factorization
2 × 2 × 443 × 16189
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
14343454
Product of the distinct prime numbers
The prime factorization of 28686908 is 2 × 2 × 443 × 16189.
Since it has a total of 4 prime factors.
5 , 3 , 61 , 76 , 956 , 908 , 9379 , 5932 , 7488 , 98260 , 284612 , 406396 , 883411 , 8077835 , 21938815 , 89077576 , 714610839 , 9671073 , 2835967440 , 989969095
n×2
57373816
n×3
86060724
n×4
114747632
n×5
143434540
n÷2
14343454
n÷3
9562302.6666667
n÷3
7171727
n÷5
5737381.6
n2
822938690600464
n3
2.3607566506896E+22
n4
6.7722808848721E+29
n5
1.9427579869448E+37
2 √n
5356.0160567347
3 √n
306.12202688655
4 √n
73.184807554128
5 √n
31.012497917926
1 , 2 , 4 , 443 , 886 , 1772 , 16189 , 32378 , 64756 , 7171727 , 14343454 , 28686908
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
-28686907
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 28686908 can be divided by 12 positive divisors.
The sum of these divisors (counting 28686908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101101011011101000111100
3
Ternary
1222222110001002
4
Quaternary
1231123220330
5
Quinary
24320440113
6
Senary
2502505432
8
Octal
155335074
10
Decimal
28686908
12
Duodecimal
9735278
16
Hexadecimal
1b5ba3c
20
Vigesimal
8j5h58
36
Base36
h2uyk
md5
dea2ba79780d7ae4e7839f5fa856e9ee
sha1
af96e340fb550f99cfc06476b4b0193164114259
sha256
fde425f079c6c5d7df9c4338a04956f68053866b7dc2f281b8523a1f78da9a04
sha512
76ffa552e4e27bf3b073c567fd6ff69f4b114ae23db63c55bf7bb5028f9cac89d52276007b8755577a997942333c3c26ec398cd06e75d9b3d840b6f153f589d4
ripemd-160
6eab2751f0e2c05a80543fc8e33d265248773aee
Diameter
57373816
Circumference
180245158.85401
Area
2.5853381447452E+15
Volume
9.8887143342929E+22
Surface area
1.0341352578981E+16
Circumference
180245158.85401
Perimeter
114747632
Area
822938690600464
Diagonal
40569414.356149
Surface area
4937632143602784
Volume
2.3607566506896E+22
Space diagonal
49687182.168054
Perimeter
86060724
Area
3.5634290590855E+14
Altitude
24843591.084027
Surface area
3.5634290590855E+14
Volume
2.7821783940564E+21
Height
13523138.118716