28557 is an odd 5-digits composite number following 28556
and preceding 28558 . In scientific notation, it is written as 2.8557 × 10^4.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 17928 positive integers (up to 28557) that are relatively prime to 28557.
28557 has 12 divisors, whose sum is 43680
The reverse of 28557 is 75582
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 27
Digital Root 9
Name
twenty-eight thousand five hundred fifty-seven
Scientific notation
2.8557 × 10^4
Engineering notation
2.8557 × 10^3
Prime Factorization
3 × 3 × 19 × 167
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9519
Product of the distinct prime numbers
The prime factorization of 28557 is 3 × 3 × 19 × 167.
Since it has a total of 4 prime factors.
4 , 5 , 90 , 98 , 720 , 132 , 5539 , 2626 , 39752 , 45046 , 543018 , 680846 , 8613387 , 6820393 , 63056836 , 2812263 , 388086539 , 994627554 , 197255375 , 930316574
n×2
57114
n×3
85671
n×4
114228
n×5
142785
n÷2
14278.5
n÷3
9519
n÷3
7139.25
n÷5
5711.4
n2
815502249
n3
23288297724693
n4
665043918124058001
n5
1.8991659169869E+22
2 √n
168.98816526609
3 √n
30.565923876516
4 √n
12.999544809957
5 √n
7.7829191024134
1 , 3 , 9 , 19 , 57 , 167 , 171 , 501 , 1503 , 3173 , 9519 , 28557
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
-28556
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 28557 can be divided by 12 positive divisors.
The sum of these divisors (counting 28557) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110111110001101
3
Ternary
1110011200
4
Quaternary
12332031
5
Quinary
1403212
6
Senary
340113
8
Octal
67615
10
Decimal
28557
12
Duodecimal
14639
16
Hexadecimal
6f8d
20
Vigesimal
3b7h
36
Base36
m19
md5
87c04785ed9bce046df7b17642eed05a
sha1
90b6c3f31e9a551e269a62ff752847995737fbfb
sha256
057e92da44d07ba4f922c7f8c686cabc04efd864d312739917167b54e7b691c6
sha512
84394d5340f89861dc1ed7eeb68e6993871885fb4b42ae18bd9cede0deb8478262a0a471d0298909dcb949bb971b6fd38ecbcdb241e954634f05494ce1236966
ripemd-160
4ba02e193c4dfec39072474c4bac51c38c79167d
Diameter
57114
Circumference
179428.92281713
Area
2561975874.4444
Volume
97549793395343
Surface area
10247903497.777
Circumference
179428.92281713
Perimeter
114228
Area
815502249
Diagonal
40385.696700688
Surface area
4893013494
Volume
23288297724693
Space diagonal
49462.174911744
Perimeter
85671
Area
353122832.23867
Altitude
24731.087455872
Surface area
353122832.23867
Volume
2744552207236.9
Height
13461.898900229