28491161 is an odd 8-digits composite number following 28491160
and preceding 28491162 . In scientific notation, it is written as 2.8491161 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 28147812 positive integers (up to 28491161) that are relatively prime to 28491161.
28491161 has 4 divisors, whose sum is 28834512
The reverse of 28491161 is 16119482
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million four hundred ninety-one thousand one hundred sixty-one
Scientific notation
2.8491161 × 10^7
Engineering notation
2.8491161 × 10^6
Prime Factorization
83 × 343267
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28491161
Product of the distinct prime numbers
The prime factorization of 28491161 is 83 × 343267.
Since it has a total of 2 prime factors.
5 , 3 , 75 , 26 , 385 , 116 , 3432 , 105 , 60355 , 2540 , 124831 , 979269 , 7741087 , 5191373 , 57389518 , 14810350 , 396108697 , 210071548 , 3805167597 , 1092447074
n×2
56982322
n×3
85473483
n×4
113964644
n×5
142455805
n÷2
14245580.5
n÷3
9497053.6666667
n÷3
7122790.25
n÷5
5698232.2
n2
811746255127921
n3
2.3127593245997E+22
n4
6.589319827142E+29
n5
1.877373720756E+37
2 √n
5337.7112136196
3 √n
305.42415589954
4 √n
73.059641482966
5 √n
30.97005876166
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
-28491160
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 28491161 can be divided by 4 positive divisors.
The sum of these divisors (counting 28491161) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100101011110110011001
3
Ternary
1222121111112012
4
Quaternary
1230223312121
5
Quinary
24243204121
6
Senary
2454355305
8
Octal
154536631
10
Decimal
28491161
12
Duodecimal
965bb35
16
Hexadecimal
1b2bd99
20
Vigesimal
8i17i1
36
Base36
gynx5
md5
8e9b7cf81bdf726d8a8739a7237148a0
sha1
0ecbd5e25502ce86cd58bed6c7c69ce023a3341f
sha256
3218e878ceab26d7be37e75a11c58047252034296521338e89542389100f8775
sha512
813c623248ad56a24091397991034f8f231e41c4e9616c6e610649d40662666a20a03f61ebad73702acf90b992fce77f171810ebe8261e2acaf5a35c64932284
ripemd-160
e77844be89d203818d55418afe7690a10b30e56d
Diameter
56982322
Circumference
179015244.17969
Area
2.5501760716889E+15
Volume
9.6876636049115E+22
Surface area
1.0200704286756E+16
Circumference
179015244.17969
Perimeter
113964644
Area
811746255127921
Diagonal
40292586.293955
Surface area
4870477530767526
Volume
2.3127593245997E+22
Space diagonal
49348138.418625
Perimeter
85473483
Area
3.5149643918383E+14
Altitude
24674069.209312
Surface area
3.5149643918383E+14
Volume
2.7256130027947E+21
Height
13430862.097985