81323786 is an even 8-digits composite number following 81323785
and preceding 81323787 . In scientific notation, it is written as 8.1323786 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 40259200 positive integers (up to 81323786) that are relatively prime to 81323786.
81323786 has 8 divisors, whose sum is 123193764
The reverse of 81323786 is 68732318
Previous prime number is 101
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million three hundred twenty-three thousand seven hundred eighty-six
Scientific notation
8.1323786 × 10^7
Engineering notation
8.1323786 × 10^6
Prime Factorization
2 × 101 × 402593
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81323786
Product of the distinct prime numbers
The prime factorization of 81323786 is 2 × 101 × 402593.
Since it has a total of 3 prime factors.
2 , 6 , 95 , 11 , 489 , 305 , 2311 , 5850 , 17663 , 9101 , 28938 , 28010 , 3951733 , 496127 , 64927047 , 51906610 , 719164965 , 597291222 , 6448476065 , 3527041473
n×2
162647572
n×3
243971358
n×4
325295144
n×5
406618930
n÷2
40661893
n÷3
27107928.666667
n÷3
20330946.5
n÷5
16264757.2
n2
6613558169373796
n3
5.3783958926471E+23
n4
4.3739151659691E+31
n5
3.5570334093942E+39
2 √n
9017.9701707202
3 √n
433.25062339898
4 √n
94.962993690807
5 √n
38.198254486225
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81323785
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81323786 can be divided by 8 positive divisors.
The sum of these divisors (counting 81323786) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110001110011100001010
3
Ternary
12200000200021002
4
Quaternary
10312032130022
5
Quinary
131304330121
6
Senary
12023015002
8
Octal
466163412
10
Decimal
81323786
12
Duodecimal
2329a462
16
Hexadecimal
4d8e70a
20
Vigesimal
1585996
36
Base36
1cf1u2
md5
1dc5ed715560336ef423a791b6a9e8c7
sha1
4777dcda2005c235b8ce98de7cd77ff4e5548a7c
sha256
a46e70dfb2746652a6e5506151291c31bc61c3af99b58566603df4a0ca413220
sha512
b4f99ad8cb897fb8d689710c5d9bba15987874e22b20d6af68c061045dab5150846a418a4cc4c8fe21d60709bcc7eaba80bbee99b26f2b40f8d0b37728937267
ripemd-160
a80ff3f7843576c38a8aedfa64d16c3b42f69945
Diameter
162647572
Circumference
510972417.31942
Area
2.0777105758993E+16
Volume
2.2528972032583E+24
Surface area
8.3108423035974E+16
Circumference
510972417.31942
Perimeter
325295144
Area
6613558169373796
Diagonal
115009201.10473
Surface area
39681349016242776
Volume
5.3783958926471E+23
Space diagonal
140856929.21586
Perimeter
243971358
Area
2.8637546920419E+15
Altitude
70428464.607929
Surface area
2.8637546920419E+15
Volume
6.3385003459944E+22
Height
38336400.368242