81012012 is an even 8-digits composite number following 81012011
and preceding 81012013 . In scientific notation, it is written as 8.1012012 × 10^7.
The sum of its digits is 15. It has a total of 4 prime factors and 12 positive divisors.
There are 27004000 positive integers (up to 81012012) that are relatively prime to 81012012.
81012012 has 12 divisors, whose sum is 189028056
The reverse of 81012012 is 21021018
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 15
Digital Root 6
Name
eighty-one million twelve thousand twelve
Scientific notation
8.1012012 × 10^7
Engineering notation
8.1012012 × 10^6
Prime Factorization
2 × 2 × 3 × 6751001
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40506006
Product of the distinct prime numbers
The prime factorization of 81012012 is 2 × 2 × 3 × 6751001.
Since it has a total of 4 prime factors.
8 , 2 , 64 , 28 , 32 , 484 , 177 , 4541 , 65575 , 46489 , 268873 , 394784 , 5861730 , 2517479 , 51317319 , 83710850 , 923062199 , 155281878 , 538194390 , 6030451603
n×2
162024024
n×3
243036036
n×4
324048048
n×5
405060060
n÷2
40506006
n÷3
27004004
n÷3
20253003
n÷5
16202402.4
n2
6562946088288144
n3
5.3167746725975E+23
n4
4.3072261357777E+31
n5
3.4893705539833E+39
2 √n
9000.6673085944
3 √n
432.69625806202
4 √n
94.871846764962
5 √n
38.16892105739
1 , 2 , 3 , 4 , 6 , 12 , 6751001 , 13502002 , 20253003 , 27004004 , 40506006 , 81012012
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81012011
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81012012 can be divided by 12 positive divisors.
The sum of these divisors (counting 81012012) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110101000010010100101100
3
Ternary
12122102211120220
4
Quaternary
10311002110230
5
Quinary
131214341022
6
Senary
12012211340
8
Octal
465022454
10
Decimal
81012012
12
Duodecimal
23169b50
16
Hexadecimal
4d4252c
20
Vigesimal
1566a0c
36
Base36
1c8d9o
md5
952959364368d4d4cb3992385e3f0b9b
sha1
3d0ef5134d8eb1913820764b13438da388f6d38e
sha256
13dff3b7ea2b6e478ed0b6fa0ab19ea3387a5c0c45b064737b099a2fb2adbddc
sha512
08192fbcbae70b7bc863aac9f2843d69608981d9c51a624b88adc7978a6196f0665edd2502d834b1add1d86f14dca367ee901fe59ddecc3a458b1495e069424e
ripemd-160
8afc6738c1d77c60344c9b12659f3fafa4f618d6
Diameter
162024024
Circumference
509013483.50346
Area
2.0618103216872E+16
Volume
2.2270853669633E+24
Surface area
8.2472412867488E+16
Circumference
509013483.50346
Perimeter
324048048
Area
6562946088288144
Diagonal
114568286.08553
Surface area
39377676529728864
Volume
5.3167746725975E+23
Space diagonal
140316920.80738
Perimeter
243036036
Area
2.8418390180626E+15
Altitude
70158460.40369
Surface area
2.8418390180626E+15
Volume
6.2658790417243E+22
Height
38189428.695177