81330366 is an even 8-digits composite number following 81330365
and preceding 81330367 . In scientific notation, it is written as 8.1330366 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 24347520 positive integers (up to 81330366) that are relatively prime to 81330366.
81330366 has 16 divisors, whose sum is 132568128
The reverse of 81330366 is 66303318
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million three hundred thirty thousand three hundred sixty-six
Scientific notation
8.1330366 × 10^7
Engineering notation
8.1330366 × 10^6
Prime Factorization
2 × 111 × 13 × 28181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81330366
Product of the distinct prime numbers
The prime factorization of 81330366 is 2 × 111 × 13 × 28181.
Since it has a total of 4 prime factors.
8 , 7 , 35 , 69 , 480 , 282 , 6348 , 457 , 55924 , 54970 , 804901 , 871665 , 2208640 , 5350796 , 23229406 , 27516215 , 971235371 , 994771686 , 8818705545 , 707468735
n×2
162660732
n×3
243991098
n×4
325321464
n×5
406651830
n÷2
40665183
n÷3
27110122
n÷3
20332591.5
n÷5
16266073.2
n2
6614628433693956
n3
5.3797015146634E+23
n4
4.3753309315833E+31
n5
3.5584726603679E+39
2 √n
9018.3349904514
3 √n
433.26230801738
4 √n
94.964914523478
5 √n
38.198872599062
1 , 2 , 13 , 26 , 111 , 222 , 1443 , 2886 , 28181 , 56362 , 366353 , 732706 , 3128091 , 6256182 , 40665183 , 81330366
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
-81330365
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 81330366 can be divided by 16 positive divisors.
The sum of these divisors (counting 81330366) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010000000010111110
3
Ternary
12200001000021210
4
Quaternary
10312100002332
5
Quinary
131310032431
6
Senary
12023105250
8
Octal
466200276
10
Decimal
81330366
12
Duodecimal
232a2226
16
Hexadecimal
4d900be
20
Vigesimal
15865i6
36
Base36
1cf6wu
md5
6c96d420a9a32765812ba888ddbc9f21
sha1
746915113e587643d588e346b821488d7e4159fe
sha256
b4e07b932334c3dbfe142fd9685a62b6297e45ee1362a75f11f5371ba9bbc614
sha512
13ed62d6d0e19bfc45703c82bb62ec08c2536d37ae9ab77ea2b6c7d924ca1e9037644541b3c96181511680b7b927db7b0bced16533ea8ad7cd1d2c15512fe0b4
ripemd-160
43facf863b486f761b9ec2ca4979a30c166c01d1
Diameter
162660732
Circumference
511013760.67874
Area
2.0780468093519E+16
Volume
2.2534441009296E+24
Surface area
8.3121872374076E+16
Circumference
511013760.67874
Perimeter
325321464
Area
6614628433693956
Diagonal
115018506.62997
Surface area
39687770602163736
Volume
5.3797015146634E+23
Space diagonal
140868326.11017
Perimeter
243991098
Area
2.8642181300869E+15
Altitude
70434163.055086
Surface area
2.8642181300869E+15
Volume
6.3400390362967E+22
Height
38339502.209989