81246355 is an odd 8-digits composite number following 81246354
and preceding 81246356 . In scientific notation, it is written as 8.1246355 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 64997080 positive integers (up to 81246355) that are relatively prime to 81246355.
81246355 has 4 divisors, whose sum is 97495632
The reverse of 81246355 is 55364218
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million two hundred forty-six thousand three hundred fifty-five
Scientific notation
8.1246355 × 10^7
Engineering notation
8.1246355 × 10^6
Prime Factorization
5 × 16249271
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81246355
Product of the distinct prime numbers
The prime factorization of 81246355 is 5 × 16249271.
Since it has a total of 2 prime factors.
9 , 6 , 99 , 9 , 950 , 866 , 302 , 4773 , 51227 , 13725 , 438421 , 394048 , 5730804 , 657815 , 10158751 , 64572214 , 147981868 , 247644466 , 984628371 , 5622180554
n×2
162492710
n×3
243739065
n×4
324985420
n×5
406231775
n÷2
40623177.5
n÷3
27082118.333333
n÷3
20311588.75
n÷5
16249271
n2
6600970200786025
n3
5.3630476827748E+23
n4
4.3572807591665E+31
n5
3.5401317939391E+39
2 √n
9013.6759981708
3 √n
433.11307577044
4 √n
94.940381283049
5 √n
38.190977756274
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
-81246354
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 81246355 can be divided by 4 positive divisors.
The sum of these divisors (counting 81246355) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101111011100010010011
3
Ternary
12122212202001021
4
Quaternary
10311323202103
5
Quinary
131244340410
6
Senary
12021220311
8
Octal
465734223
10
Decimal
81246355
12
Duodecimal
23261697
16
Hexadecimal
4d7b893
20
Vigesimal
157ffhf
36
Base36
1cde37
md5
7354537d8ffb213afabd40f8874c979d
sha1
b1ca60542cac7d36d5c27b8e0f122048983991df
sha256
c433bd20145dad39a864905f5b45c536ee0ceaef96402f481282a7aceb98493d
sha512
378ad85d93f62bf349d1cf89f837d50072da2ed65ed66b86714db70aa845853159763928fb90d4bbd1e659e9acfb13863fd575b6e110d468257dead0cdb13bdd
ripemd-160
5ab345f7bd909a5ba03b7d578b444eaea8e7e9a4
Diameter
162492710
Circumference
510485903.9979
Area
2.0737559489355E+16
Volume
2.246468160141E+24
Surface area
8.2950237957418E+16
Circumference
510485903.9979
Perimeter
324985420
Area
6600970200786025
Diagonal
114899697.13438
Surface area
39605821204716150
Volume
5.3630476827748E+23
Space diagonal
140722814.78978
Perimeter
243739065
Area
2.8583039417524E+15
Altitude
70361407.394889
Surface area
2.8583039417524E+15
Volume
6.3204123071948E+22
Height
38299899.044793