81132012 is an even 8-digits composite number following 81132011
and preceding 81132013 . In scientific notation, it is written as 8.1132012 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 24963552 positive integers (up to 81132012) that are relatively prime to 81132012.
81132012 has 24 divisors, whose sum is 169892800
The reverse of 81132012 is 21023118
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
eighty-one million one hundred thirty-two thousand twelve
Scientific notation
8.1132012 × 10^7
Engineering notation
8.1132012 × 10^6
Prime Factorization
2 × 2 × 9 × 13 × 173359
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40566006
Product of the distinct prime numbers
The prime factorization of 81132012 is 2 × 2 × 9 × 13 × 173359.
Since it has a total of 5 prime factors.
6 , 9 , 8 , 89 , 741 , 95 , 30 , 6512 , 61110 , 8970 , 842656 , 937684 , 2483177 , 9891024 , 4187370 , 73025751 , 717856963 , 225033366 , 555104536 , 8119653967
n×2
162264024
n×3
243396036
n×4
324528048
n×5
405660060
n÷2
40566006
n÷3
27044004
n÷3
20283003
n÷5
16226402.4
n2
6582403371168144
n3
5.3404362929845E+23
n4
4.3328034140766E+31
n5
3.515290585845E+39
2 √n
9007.331014235
3 √n
432.90979814208
4 √n
94.906959777642
5 √n
38.180221996575
1 , 2 , 4 , 9 , 13 , 18 , 26 , 36 , 52 , 117 , 234 , 468 , 173359 , 346718 , 693436 , 1560231 , 2253667 , 3120462 , 4507334 , 6240924 , 9014668 , 20283003 , 40566006 , 81132012
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81132011
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81132012 can be divided by 24 positive divisors.
The sum of these divisors (counting 81132012) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110101011111100111101100
3
Ternary
12122122221012100
4
Quaternary
10311133213230
5
Quinary
131232211022
6
Senary
12014535100
8
Octal
465374754
10
Decimal
81132012
12
Duodecimal
23207490
16
Hexadecimal
4d5f9ec
20
Vigesimal
1571a0c
36
Base36
1caxv0
md5
eb44af51278b1c852eb5780c4597ddd6
sha1
cbd62db6b921ab7c354e8d021d91bea26e1a9963
sha256
0345ebd0742273bf87530d9dee46c3abc3ecc6d3c9b28cda71a6e56ed13c9473
sha512
d1e18be06cede36d1c5addd3232d519000362e199b477312f84acb6e629ce03751c3f7060419dbc210afe940720256c97e0ebeebf9bdc4d9eeb757bfce4f4876
ripemd-160
8c7d4d95f5d4a7676e0931eedf8ddc75dd0a8a7a
Diameter
162264024
Circumference
509767465.74032
Area
2.0679230073827E+16
Volume
2.2369967233339E+24
Surface area
8.2716920295306E+16
Circumference
509767465.74032
Perimeter
324528048
Area
6582403371168144
Diagonal
114737991.71302
Surface area
39494420227008864
Volume
5.3404362929845E+23
Space diagonal
140524766.90429
Perimeter
243396036
Area
2.850264268694E+15
Altitude
70262383.452144
Surface area
2.850264268694E+15
Volume
6.2937645287735E+22
Height
38245997.237672