28221557 is an odd 8-digits composite number following 28221556
and preceding 28221558 . In scientific notation, it is written as 2.8221557 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 22329072 positive integers (up to 28221557) that are relatively prime to 28221557.
28221557 has 4 divisors, whose sum is 28531776
The reverse of 28221557 is 75512282
Previous prime number is 91
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million two hundred twenty-one thousand five hundred fifty-seven
Scientific notation
2.8221557 × 10^7
Engineering notation
2.8221557 × 10^6
Prime Factorization
91 × 310127
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28221557
Product of the distinct prime numbers
The prime factorization of 28221557 is 91 × 310127.
Since it has a total of 2 prime factors.
10 , 9 , 59 , 37 , 791 , 386 , 5323 , 3531 , 69943 , 63911 , 423659 , 73703 , 1239712 , 320902 , 77550036 , 60589342 , 195146074 , 3034580 , 9924036143 , 6078076399
n×2
56443114
n×3
84664671
n×4
112886228
n×5
141107785
n÷2
14110778.5
n÷3
9407185.6666667
n÷3
7055389.25
n÷5
5644311.4
n2
796456279504249
n3
2.2477236290037E+22
n4
6.3434260516175E+29
n5
1.7902135989101E+37
2 √n
5312.396540169
3 √n
304.45771956349
4 √n
72.886188953526
5 √n
30.911223415938
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
-28221556
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 28221557 can be divided by 4 positive divisors.
The sum of these divisors (counting 28221557) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011101010000001110101
3
Ternary
1222002210200212
4
Quaternary
1223222001311
5
Quinary
24211042212
6
Senary
2444515205
8
Octal
153520165
10
Decimal
28221557
12
Duodecimal
954bb05
16
Hexadecimal
1aea075
20
Vigesimal
8g7dhh
36
Base36
gsvw5
md5
4e720cbfaf7877ba958f9a4faa198ad7
sha1
83fbf4d5d4964c6e6548c4c3f836640a8ba8e652
sha256
b374437b5d9e1db5cde60574b5573b236920dab079757652ab045da0ea3df4df
sha512
c4f88f712652575624108826b33015337fdbf93fdf0db9078d017cb8fe4d35de44c5b0bf1984f10872a0bc3484cf8b6f450bf7b411c81423e9bb32d9edcdcdc3
ripemd-160
98125abe5e44fc8673081af32c73ffee3f09a086
Diameter
56443114
Circumference
177321272.28813
Area
2.502141196596E+15
Volume
9.4152427202377E+22
Surface area
1.0008564786384E+16
Circumference
177321272.28813
Perimeter
112886228
Area
796456279504249
Diagonal
39911308.660685
Surface area
4778737677025494
Volume
2.2477236290037E+22
Space diagonal
48881170.592701
Perimeter
84664671
Area
3.4487568552716E+14
Altitude
24440585.296351
Surface area
3.4487568552716E+14
Volume
2.6489677005029E+21
Height
13303769.553562