81135331 is an odd 8-digits prime number following 81135330
and preceding 81135332 . In scientific notation, it is written as 8.1135331 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 81135330 positive integers (up to 81135331) that are relatively prime to 81135331.
81135331 has 2 divisors, whose sum is 81135332
The reverse of 81135331 is 13353118
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 25 Digital Root 7
Name
eighty-one million one hundred thirty-five thousand three hundred thirty-one
Scientific notation
8.1135331 × 10^7
Engineering notation
8.1135331 × 10^6
Prime Factorization
81135331
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81135331 Product of the distinct prime numbers
The prime factorization of 81135331 is 81135331.
Since it has a total of 1 prime factors.
5 , 8 , 38 , 35 , 945 , 582 , 7003 , 5524 , 63055 , 24433 , 817769 , 17625 , 6868426 , 3068789 , 33162329 , 85715417 , 39454413 , 220982834 , 4606366770 , 5826698833
n×2
162270662
n×3
243405993
n×4
324541324
n×5
405676655
n÷2
40567665.5
n÷3
27045110.333333
n÷3
20283832.75
n÷5
16227066.2
n2
6582941936479561
n3
5.3410917297005E+23
n4
4.3335124539061E+31
n5
3.516009673403E+39
2 √n9007.5152511667
3 √n432.91570131146
4 √n94.907930391336
5 √n38.180534371629
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81135332 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40567666 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9007.5153066759 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999753498 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81135331 can be divided by 2 positive divisors.
The sum of these divisors (counting 81135331) is 81135332, the average is 40567666.
Base
System
Value
2
Binary
100110101100000011011100011
3
Ternary
12122200002202021
4
Quaternary
10311200123203
5
Quinary
131232312311
6
Senary
12015002311
8
Octal
465403343
10
Decimal
81135331
12
Duodecimal
23209397
16
Hexadecimal
4d606e3
20
Vigesimal
1571i6b
36
Base36
1cb0f7
md5
e8847db217fbfc87434e50b05a0d37ad
sha1
5e446627b44649bdca39394481fcee7bedb5eb84
sha256
ea28619256b37cf4fb4493fc74ffdff68cd5db4b169749e140d1459b17226877
sha512
43bdba187c49dcafe39b5e1462ce58f331ab27ac2186305f973774176937d60d9143adde8fc79e70cb6c5bdf8c3ee8548de6a9cdd547e7d3e69e48a3496d3163
ripemd-160
972996523dc20d446c923434d7dcec83a59982db
Diameter
162270662
Circumference
509788319.63235
Area
2.0680922026652E+16
Volume
2.2372712720235E+24
Surface area
8.2723688106609E+16
Circumference
509788319.63235
Perimeter
324541324
Area
6582941936479561
Diagonal
114742685.48783
Surface area
39497651618877366
Volume
5.3410917297005E+23
Space diagonal
140530515.58092
Perimeter
243405993
Area
2.8504974743146E+15
Altitude
70265257.790459
Surface area
2.8504974743146E+15
Volume
6.294536968351E+22
Height
38247561.829277