28398081 is an odd 8-digits composite number following 28398080
and preceding 28398082 . In scientific notation, it is written as 2.8398081 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 18932052 positive integers (up to 28398081) that are relatively prime to 28398081.
28398081 has 4 divisors, whose sum is 37864112
The reverse of 28398081 is 18089382
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million three hundred ninety-eight thousand eighty-one
Scientific notation
2.8398081 × 10^7
Engineering notation
2.8398081 × 10^6
Prime Factorization
3 × 9466027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28398081
Product of the distinct prime numbers
The prime factorization of 28398081 is 3 × 9466027.
Since it has a total of 2 prime factors.
6 , 4 , 53 , 8 , 542 , 763 , 2151 , 9396 , 90702 , 57019 , 117309 , 187576 , 5418902 , 9399537 , 58296796 , 83843003 , 442128393 , 371358987 , 3490804686 , 8400997055
n×2
56796162
n×3
85194243
n×4
113592324
n×5
141990405
n÷2
14199040.5
n÷3
9466027
n÷3
7099520.25
n÷5
5679616.2
n2
806451004482561
n3
2.2901660947827E+22
n4
6.5036322263093E+29
n5
1.8469067475694E+37
2 √n
5328.9849877814
3 √n
305.09118835699
4 √n
72.999897176513
5 √n
30.949796564913
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28398080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28398081 can be divided by 4 positive divisors.
The sum of these divisors (counting 28398081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010101001000000001
3
Ternary
1222102202211210
4
Quaternary
1230111020001
5
Quinary
24232214311
6
Senary
2452400333
8
Octal
154251001
10
Decimal
28398081
12
Duodecimal
96160a9
16
Hexadecimal
1b15201
20
Vigesimal
8h9f41
36
Base36
gwo3l
md5
9da472fbb37ae447a470d24c7489399c
sha1
aaca9d6a2c3785f9a5ef7eae25273c49f6888eee
sha256
adc71c71773cbcf5febf07b4effb751211074ddc71ac79dbd40c37eadc708728
sha512
f8674694f7660ab6f26979a2229a96baa4cc1717fb01b436e12761c5f736b809edc3b75b7217cdb337ea6efa7b5e7cdcc1447c6e0faa3f5c52160ca9a12dfef5
ripemd-160
f13a930ea1583661422fc13915d67d298e33d57c
Diameter
56796162
Circumference
178430405.2913
Area
2.5335405511625E+15
Volume
9.5930253051597E+22
Surface area
1.013416220465E+16
Circumference
178430405.2913
Perimeter
113592324
Area
806451004482561
Diagonal
40160951.29557
Surface area
4838706026895366
Volume
2.2901660947827E+22
Space diagonal
49186919.129456
Perimeter
85194243
Area
3.4920352839469E+14
Altitude
24593459.564728
Surface area
3.4920352839469E+14
Volume
2.6989866261073E+21
Height
13386983.76519