81072582 is an even 8-digits composite number following 81072581
and preceding 81072583 . In scientific notation, it is written as 8.1072582 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 25601832 positive integers (up to 81072582) that are relatively prime to 81072582.
81072582 has 16 divisors, whose sum is 170679360
The reverse of 81072582 is 28527018
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million seventy-two thousand five hundred eighty-two
Scientific notation
8.1072582 × 10^7
Engineering notation
8.1072582 × 10^6
Prime Factorization
2 × 3 × 19 × 711163
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81072582
Product of the distinct prime numbers
The prime factorization of 81072582 is 2 × 3 × 19 × 711163.
Since it has a total of 4 prime factors.
6 , 7 , 14 , 20 , 152 , 809 , 8918 , 6146 , 32489 , 824 , 960969 , 465456 , 5651580 , 2461221 , 53618732 , 89727889 , 199215975 , 325705214 , 3863523251 , 9760273454
n×2
162145164
n×3
243217746
n×4
324290328
n×5
405362910
n÷2
40536291
n÷3
27024194
n÷3
20268145.5
n÷5
16214516.4
n2
6572763552146724
n3
5.3287091204803E+23
n4
4.3201220712428E+31
n5
3.5024345087085E+39
2 √n
9004.0314304205
3 √n
432.80406875451
4 √n
94.889574930129
5 √n
38.174626879012
1 , 2 , 3 , 6 , 19 , 38 , 57 , 114 , 711163 , 1422326 , 2133489 , 4266978 , 13512097 , 27024194 , 40536291 , 81072582
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
-81072581
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 81072582 can be divided by 16 positive divisors.
The sum of these divisors (counting 81072582) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101010001000111000110
3
Ternary
12122112220200020
4
Quaternary
10311101013012
5
Quinary
131223310312
6
Senary
12013400010
8
Octal
465210706
10
Decimal
81072582
12
Duodecimal
23199006
16
Hexadecimal
4d511c6
20
Vigesimal
156e192
36
Base36
1c9o06
md5
9f42b5b81fb8860009d2cd8cb28c3491
sha1
88e516513f3fad002f54b82ea3772f02fda0acad
sha256
38be2dc142b6966865b307f4bd2e2c8a18dd5c56bb1e6100363da28bab588880
sha512
40157fa28bff932de75aa1200dfe3e072d12542f8362d488d40d98a911a9c31a698d98999ae1457afac4ed69be9a299694ee7840e4ad9007045b296e493aff04
ripemd-160
520a8783bddb65db20f2a98415928e3787ad2b63
Diameter
162145164
Circumference
509394056.03751
Area
2.0648945689207E+16
Volume
2.2320844568024E+24
Surface area
8.2595782756828E+16
Circumference
509394056.03751
Perimeter
324290328
Area
6572763552146724
Diagonal
114653945.001
Surface area
39436581312880344
Volume
5.3287091204803E+23
Space diagonal
140421831.12479
Perimeter
243217746
Area
2.8460901046138E+15
Altitude
70210915.562397
Surface area
2.8460901046138E+15
Volume
6.279943923437E+22
Height
38217981.667002