28156909 is an odd 8-digits composite number following 28156908
and preceding 28156910 . In scientific notation, it is written as 2.8156909 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 25548960 positive integers (up to 28156909) that are relatively prime to 28156909.
28156909 has 8 divisors, whose sum is 30774528
The reverse of 28156909 is 90965182
Previous prime number is 607
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million one hundred fifty-six thousand nine hundred nine
Scientific notation
2.8156909 × 10^7
Engineering notation
2.8156909 × 10^6
Prime Factorization
11 × 607 × 4217
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28156909
Product of the distinct prime numbers
The prime factorization of 28156909 is 11 × 607 × 4217.
Since it has a total of 3 prime factors.
4 , 9 , 17 , 7 , 674 , 607 , 1245 , 9658 , 26350 , 51791 , 350062 , 86005 , 8204498 , 6298056 , 10806896 , 49695275 , 49434758 , 399668799 , 6113518802 , 7728922315
n×2
56313818
n×3
84470727
n×4
112627636
n×5
140784545
n÷2
14078454.5
n÷3
9385636.3333333
n÷3
7039227.25
n÷5
5631381.8
n2
792811524434281
n3
2.2323121947647E+22
n4
6.2855011327581E+29
n5
1.7698028341447E+37
2 √n
5306.3084154617
3 √n
304.22506489483
4 √n
72.844412383255
5 √n
30.897048561135
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
-28156908
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 28156909 can be divided by 8 positive divisors.
The sum of these divisors (counting 28156909) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011011010001111101101
3
Ternary
1221222112000111
4
Quaternary
1223122033231
5
Quinary
24202010114
6
Senary
2443300021
8
Octal
153321755
10
Decimal
28156909
12
Duodecimal
951a611
16
Hexadecimal
1ada3ed
20
Vigesimal
8fjc59
36
Base36
gri0d
md5
219084eee275c22a17d21beb0ce0f09d
sha1
74a90c3ac4ab7c2b728b8c3747e721cb451006ec
sha256
010f42784a2e57a2e3ff4d2e74961ec427246442f59c1378c99ff113ea494336
sha512
407f88c6a6744b2efd3036321c241544964dd119032b736cfd9a55a2182061a992aaa8c39180263a67e14820faf606422f2ed60967cd5912b4c7e8b8514e0549
ripemd-160
79e3839f4cff501e86f3ce0d1a821c8a6ec6c281
Diameter
56313818
Circumference
176915076.92439
Area
2.4906908608441E+15
Volume
9.3506874554557E+22
Surface area
9.9627634433762E+15
Circumference
176915076.92439
Perimeter
112627636
Area
792811524434281
Diagonal
39819882.582305
Surface area
4756869146605686
Volume
2.2323121947647E+22
Space diagonal
48769196.972093
Perimeter
84470727
Area
3.4329746028658E+14
Altitude
24384598.486047
Surface area
3.4329746028658E+14
Volume
2.6308051510726E+21
Height
13273294.194102