81170065 is an odd 8-digits composite number following 81170064
and preceding 81170066 . In scientific notation, it is written as 8.1170065 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 64936048 positive integers (up to 81170065) that are relatively prime to 81170065.
81170065 has 4 divisors, whose sum is 97404084
The reverse of 81170065 is 56007118
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million one hundred seventy thousand sixty-five
Scientific notation
8.1170065 × 10^7
Engineering notation
8.1170065 × 10^6
Prime Factorization
5 × 16234013
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81170065
Product of the distinct prime numbers
The prime factorization of 81170065 is 5 × 16234013.
Since it has a total of 2 prime factors.
3 , 6 , 61 , 11 , 630 , 243 , 4821 , 4500 , 64548 , 24637 , 103199 , 727422 , 4489158 , 6341329 , 20888700 , 16130160 , 563893123 , 918124506 , 5152699961 , 365462799
n×2
162340130
n×3
243510195
n×4
324680260
n×5
405850325
n÷2
40585032.5
n÷3
27056688.333333
n÷3
20292516.25
n÷5
16234013
n2
6588579452104225
n3
5.3479542238496E+23
n4
4.340937919669E+31
n5
3.523542131005E+39
2 √n
9009.4431015463
3 √n
432.97746950596
4 √n
94.918086272039
5 √n
38.183802826027
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
-81170064
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 81170065 can be divided by 4 positive divisors.
The sum of these divisors (counting 81170065) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101101000111010010001
3
Ternary
12122201212101201
4
Quaternary
10311220322101
5
Quinary
131234420230
6
Senary
12015431201
8
Octal
465507221
10
Decimal
81170065
12
Duodecimal
23225501
16
Hexadecimal
4d68e91
20
Vigesimal
1576535
36
Base36
1cbr81
md5
888b621f9fd2eb1bbacec5ee1fdfd66e
sha1
8fc178e62c6dee4ad33d2a31d1778f306298b44e
sha256
beee94ad341b1eb8f44f678405ae37341ce475fdbaf401adde31f35a665c7869
sha512
adb1fc24d014af13db4e2f829c870b4d140b92948bad8844417b3ac729702bdfca64bfa907302a5e59db26ad75087d3f193a8efd978d4399490291f3a6807587
ripemd-160
dbc39c5922edca87f5ebb25587e0296597796fce
Diameter
162340130
Circumference
510006559.79081
Area
2.0698632804323E+16
Volume
2.2401458268507E+24
Surface area
8.2794531217293E+16
Circumference
510006559.79081
Perimeter
324680260
Area
6588579452104225
Diagonal
114791806.78171
Surface area
39531476712625350
Volume
5.3479542238496E+23
Space diagonal
140590676.63367
Perimeter
243510195
Area
2.8529385901872E+15
Altitude
70295338.316834
Surface area
2.8529385901872E+15
Volume
6.3026244952655E+22
Height
38263935.593902