81170086 is an even 8-digits composite number following 81170085
and preceding 81170087 . In scientific notation, it is written as 8.1170086 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 40585042 positive integers (up to 81170086) that are relatively prime to 81170086.
81170086 has 4 divisors, whose sum is 121755132
The reverse of 81170086 is 68007118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million one hundred seventy thousand eighty-six
Scientific notation
8.1170086 × 10^7
Engineering notation
8.1170086 × 10^6
Prime Factorization
2 × 40585043
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81170086
Product of the distinct prime numbers
The prime factorization of 81170086 is 2 × 40585043.
Since it has a total of 2 prime factors.
10 , 8 , 38 , 14 , 787 , 179 , 2127 , 7149 , 15613 , 20428 , 858768 , 455021 , 4764579 , 8956538 , 84579952 , 83578512 , 21978763 , 945297586 , 1629790725 , 3675305664
n×2
162340172
n×3
243510258
n×4
324680344
n×5
405850430
n÷2
40585043
n÷3
27056695.333333
n÷3
20292521.5
n÷5
16234017.2
n2
6588582861247396
n3
5.3479583746558E+23
n4
4.3409424119523E+31
n5
3.5235466889921E+39
2 √n
9009.4442669901
3 √n
432.97750684537
4 √n
94.918092411247
5 √n
38.18380480178
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
-81170085
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 81170086 can be divided by 4 positive divisors.
The sum of these divisors (counting 81170086) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101101000111010100110
3
Ternary
12122201212102111
4
Quaternary
10311220322212
5
Quinary
131234420321
6
Senary
12015431234
8
Octal
465507246
10
Decimal
81170086
12
Duodecimal
2322551a
16
Hexadecimal
4d68ea6
20
Vigesimal
1576546
36
Base36
1cbr8m
md5
6a4b12461ca878f9bcc709d58f17036e
sha1
8c1724d8e27e2bb5962eea6575c65b2ef7fc1655
sha256
aa0ca5cac0e5791266bf50972cba9831020d672fb77d2df8f9994bd977553792
sha512
873698aaaa1cc3910ff065e8a3c7013d3612b1eb45e8c238b81338ee7db2092e7aae5947755872e5acdfcbb9b10f42ab44de911997b6e4063880804f51008734
ripemd-160
df8388ee13cc3c4b1db0013e615e28872d7db539
Diameter
162340172
Circumference
510006691.7377
Area
2.0698643514462E+16
Volume
2.2401475655363E+24
Surface area
8.279457405785E+16
Circumference
510006691.7377
Perimeter
324680344
Area
6588582861247396
Diagonal
114791836.48019
Surface area
39531497167484376
Volume
5.3479583746558E+23
Space diagonal
140590713.00674
Perimeter
243510258
Area
2.8529400663895E+15
Altitude
70295356.503368
Surface area
2.8529400663895E+15
Volume
6.3026293870375E+22
Height
38263945.493397