28162891 is an odd 8-digits composite number following 28162890
and preceding 28162892 . In scientific notation, it is written as 2.8162891 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 28148800 positive integers (up to 28162891) that are relatively prime to 28162891.
28162891 has 4 divisors, whose sum is 28176984
The reverse of 28162891 is 19826182
Previous prime number is 2411
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million one hundred sixty-two thousand eight hundred ninety-one
Scientific notation
2.8162891 × 10^7
Engineering notation
2.8162891 × 10^6
Prime Factorization
2411 × 11681
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28162891
Product of the distinct prime numbers
The prime factorization of 28162891 is 2411 × 11681.
Since it has a total of 2 prime factors.
2 , 3 , 65 , 42 , 972 , 431 , 3874 , 6037 , 93037 , 91943 , 432161 , 773378 , 9746236 , 279851 , 3877126 , 50087707 , 67184868 , 596782599 , 5323633651 , 908828524
n×2
56325782
n×3
84488673
n×4
112651564
n×5
140814455
n÷2
14081445.5
n÷3
9387630.3333333
n÷3
7040722.75
n÷5
5632578.2
n2
793148429477881
n3
2.2337352766207E+22
n4
6.2908443118323E+29
n5
1.771683626521E+37
2 √n
5306.8720542331
3 √n
304.24660780726
4 √n
72.84828106574
5 √n
30.898361279372
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
-28162890
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 28162891 can be divided by 4 positive divisors.
The sum of these divisors (counting 28162891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011011101101001011
3
Ternary
1221222211020001
4
Quaternary
1223123231023
5
Quinary
24202203031
6
Senary
2443343431
8
Octal
153335513
10
Decimal
28162891
12
Duodecimal
9521b77
16
Hexadecimal
1adbb4b
20
Vigesimal
8g074b
36
Base36
grmmj
md5
89df168a63e1caa9d89728b21f73e34d
sha1
8fda0a48e8094739b2c6e291c236244ca89b654b
sha256
b3917176220891e00f26d07eae829522c79247c2a99feccbc316472d9eb8e903
sha512
db0326baf24156d25a2e7d109bbfccd038c47628d2bbfc0b20426bc5a1fe024f106224f02f79a6aec0fc27329a26af8dbc0c940d21500690165bc46a07f0160a
ripemd-160
9d1afb4cb7cfaf00b0ba51c7192d1ab726626cf4
Diameter
56325782
Circumference
176952662.9389
Area
2.491749279254E+15
Volume
9.3566484467945E+22
Surface area
9.966997117016E+15
Circumference
176952662.9389
Perimeter
112651564
Area
793148429477881
Diagonal
39828342.407835
Surface area
4758890576867286
Volume
2.2337352766207E+22
Space diagonal
48779558.100024
Perimeter
84488673
Area
3.4344334444979E+14
Altitude
24389779.050012
Surface area
3.4344334444979E+14
Volume
2.6324822691235E+21
Height
13276114.135945