81012011 is an odd 8-digits composite number following 81012010
and preceding 81012012 . In scientific notation, it is written as 8.1012011 × 10^7.
The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors.
There are 80976000 positive integers (up to 81012011) that are relatively prime to 81012011.
81012011 has 4 divisors, whose sum is 81048024
The reverse of 81012011 is 11021018
Previous prime number is 2411
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
eighty-one million twelve thousand eleven
Scientific notation
8.1012011 × 10^7
Engineering notation
8.1012011 × 10^6
Prime Factorization
2411 × 33601
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81012011
Product of the distinct prime numbers
The prime factorization of 81012011 is 2411 × 33601.
Since it has a total of 2 prime factors.
3 , 7 , 26 , 29 , 990 , 906 , 9000 , 9896 , 15486 , 49542 , 37397 , 660211 , 1940858 , 3221634 , 5695221 , 47161538 , 814544465 , 348924461 , 6883858483 , 2957111208
n×2
162024022
n×3
243036033
n×4
324048044
n×5
405060055
n÷2
40506005.5
n÷3
27004003.666667
n÷3
20253002.75
n÷5
16202402.2
n2
6562945926264121
n3
5.3167744757091E+23
n4
4.3072259231067E+31
n5
3.489370338622E+39
2 √n
9000.667253043
3 √n
432.69625628164
4 √n
94.871846472191
5 √n
38.168920963159
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
-81012010
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 81012011 can be divided by 4 positive divisors.
The sum of these divisors (counting 81012011) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101000010010100101011
3
Ternary
12122102211120212
4
Quaternary
10311002110223
5
Quinary
131214341021
6
Senary
12012211335
8
Octal
465022453
10
Decimal
81012011
12
Duodecimal
23169b4b
16
Hexadecimal
4d4252b
20
Vigesimal
1566a0b
36
Base36
1c8d9n
md5
678dcb8bb93506e8e189c24d3adbba06
sha1
0f87bb1cd34449f6f92853fd8cf03d51580c8ccf
sha256
2aa36318d53e146802fe6904f747b77182711951b0ea0721632373460e351b5a
sha512
8c9fcf7fa668d9719effcc6fd36f80e2afc04382d148b3333d6d2350ec8edb660df2cd1b5eaa9afde5a8b8905fb9e75649b335b92320b7db159c5ef8204e9b82
ripemd-160
6b7e92639f673ebc16f6de0a472af72ddd4846c7
Diameter
162024022
Circumference
509013477.22027
Area
2.0618102707858E+16
Volume
2.2270852844909E+24
Surface area
8.2472410831434E+16
Circumference
509013477.22027
Perimeter
324048044
Area
6562945926264121
Diagonal
114568284.67132
Surface area
39377675557584726
Volume
5.3167744757091E+23
Space diagonal
140316919.07533
Perimeter
243036033
Area
2.8418389479042E+15
Altitude
70158459.537664
Surface area
2.8418389479042E+15
Volume
6.2658788096891E+22
Height
38189428.223773