81301246 is an even 8-digits composite number following 81301245
and preceding 81301247 . In scientific notation, it is written as 8.1301246 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 37481184 positive integers (up to 81301246) that are relatively prime to 81301246.
81301246 has 16 divisors, whose sum is 131481504
The reverse of 81301246 is 64210318
Previous prime number is 1847
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million three hundred one thousand two hundred forty-six
Scientific notation
8.1301246 × 10^7
Engineering notation
8.1301246 × 10^6
Prime Factorization
2 × 13 × 1847 × 1693
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81301246
Product of the distinct prime numbers
The prime factorization of 81301246 is 2 × 13 × 1847 × 1693.
Since it has a total of 4 prime factors.
10 , 1 , 7 , 84 , 482 , 866 , 8501 , 250 , 17098 , 62631 , 363557 , 76861 , 2166854 , 6111982 , 66000623 , 48900129 , 446580504 , 499829390 , 9295016071 , 8871607069
n×2
162602492
n×3
243903738
n×4
325204984
n×5
406506230
n÷2
40650623
n÷3
27100415.333333
n÷3
20325311.5
n÷5
16260249.2
n2
6609892601152516
n3
5.3739250439988E+23
n4
4.3690680198771E+31
n5
3.5521067387476E+39
2 √n
9016.7203572031
3 √n
433.21059258765
4 √n
94.95641293353
5 √n
38.196136817661
1 , 2 , 13 , 26 , 1693 , 1847 , 3386 , 3694 , 22009 , 24011 , 44018 , 48022 , 3126971 , 6253942 , 40650623 , 81301246
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81301245
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81301246 can be divided by 16 positive divisors.
The sum of these divisors (counting 81301246) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110001000111011111110
3
Ternary
12122222112100021
4
Quaternary
10312020323332
5
Quinary
131303114441
6
Senary
12022322354
8
Octal
466107376
10
Decimal
81301246
12
Duodecimal
232893ba
16
Hexadecimal
4d88efe
20
Vigesimal
1582d26
36
Base36
1cekfy
md5
57d2fcc4c0013b0f646e671eca3297cc
sha1
848d2befa6a445f29e59cd5f631dd338c356f06d
sha256
09e23ddaf4ef90d289af3997aa25df14a815f7ee3d1f4a3d23ba7cd81a07f6df
sha512
838fa221031d3494786128f02ca359970d3be133736db06b9aa0a29874a8b8b05519ae0fafe205608996dffc927fbeab6b0568ed5b42aa6747f9224de963e1e7
ripemd-160
019b55c7d3721a3f6f04aed7817fa0b2d198ccca
Diameter
162602492
Circumference
510830794.32259
Area
2.0765590036798E+16
Volume
2.2510244585558E+24
Surface area
8.3062360147193E+16
Circumference
510830794.32259
Perimeter
325204984
Area
6609892601152516
Diagonal
114977324.73103
Surface area
39659355606915096
Volume
5.3739250439988E+23
Space diagonal
140817888.79066
Perimeter
243903738
Area
2.8621674544424E+15
Altitude
70408944.395328
Surface area
2.8621674544424E+15
Volume
6.333231400333E+22
Height
38325774.910344