81592085 is an odd 8-digits composite number following 81592084
and preceding 81592086 . In scientific notation, it is written as 8.1592085 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 64120320 positive integers (up to 81592085) that are relatively prime to 81592085.
81592085 has 16 divisors, whose sum is 99655920
The reverse of 81592085 is 58029518
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million five hundred ninety-two thousand eighty-five
Scientific notation
8.1592085 × 10^7
Engineering notation
8.1592085 × 10^6
Prime Factorization
5 × 181 × 89 × 1013
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81592085
Product of the distinct prime numbers
The prime factorization of 81592085 is 5 × 181 × 89 × 1013.
Since it has a total of 4 prime factors.
9 , 5 , 32 , 91 , 75 , 716 , 2216 , 1266 , 41560 , 94753 , 941045 , 158138 , 4909997 , 6456006 , 64473627 , 98529380 , 591931518 , 851932561 , 8471715631 , 6353800407
n×2
163184170
n×3
244776255
n×4
326368340
n×5
407960425
n÷2
40796042.5
n÷3
27197361.666667
n÷3
20398021.25
n÷5
16318417
n2
6657268334647225
n3
5.4318040382834E+23
n4
4.4319221679497E+31
n5
3.6160977024073E+39
2 √n
9032.833719271
3 √n
433.72655267229
4 √n
95.041221158353
5 √n
38.22342561046
1 , 5 , 89 , 181 , 445 , 905 , 1013 , 5065 , 16109 , 80545 , 90157 , 183353 , 450785 , 916765 , 16318417 , 81592085
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81592084
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81592085 can be divided by 16 positive divisors.
The sum of these divisors (counting 81592085) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111001111111100010101
3
Ternary
12200112022022002
4
Quaternary
10313033330111
5
Quinary
131341421320
6
Senary
12032445045
8
Octal
467177425
10
Decimal
81592085
12
Duodecimal
233a9785
16
Hexadecimal
4dcff15
20
Vigesimal
159j045
36
Base36
1cksut
md5
aff287f7a56032d4f73d389b1cbda1c0
sha1
198a3fe248d4393c341bc36772eb1cc384cea0e1
sha256
cd2c62417efb953e62d611948dd5cbcf4113e68bcce916769b793babf2a46787
sha512
fc0fade8f158be66ec0ff44c0b031590067e41a1052823e373caeefd292e64aab38ff91abc52b25f0410b17ec8739ae77503282c3f5d830c4b84ffe1b81b391b
ripemd-160
067db55787e548e30b505c50491f485eea2e182c
Diameter
163184170
Circumference
512658189.65415
Area
2.0914425293104E+16
Volume
2.2752687549881E+24
Surface area
8.3657701172415E+16
Circumference
512658189.65415
Perimeter
326368340
Area
6657268334647225
Diagonal
115388633.1893
Surface area
39943610007883350
Volume
5.4318040382834E+23
Space diagonal
141321636.71548
Perimeter
244776255
Area
2.8826817488071E+15
Altitude
70660818.357739
Surface area
2.8826817488071E+15
Volume
6.4014424492445E+22
Height
38462877.729766