81330356 is an even 8-digits composite number following 81330355
and preceding 81330357 . In scientific notation, it is written as 8.1330356 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 6 positive divisors.
There are 40665176 positive integers (up to 81330356) that are relatively prime to 81330356.
81330356 has 6 divisors, whose sum is 142328130
The reverse of 81330356 is 65303318
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million three hundred thirty thousand three hundred fifty-six
Scientific notation
8.1330356 × 10^7
Engineering notation
8.1330356 × 10^6
Prime Factorization
2 × 2 × 20332589
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40665178
Product of the distinct prime numbers
The prime factorization of 81330356 is 2 × 2 × 20332589.
Since it has a total of 3 prime factors.
1 , 2 , 30 , 57 , 27 , 996 , 7917 , 2938 , 62822 , 88133 , 594872 , 911263 , 8503444 , 3652906 , 22250743 , 3242960 , 279858772 , 907564758 , 7129450083 , 6766688846
n×2
162660712
n×3
243991068
n×4
325321424
n×5
406651780
n÷2
40665178
n÷3
27110118.666667
n÷3
20332589
n÷5
16266071.2
n2
6614626807086736
n3
5.3796995302751E+23
n4
4.375328779703E+31
n5
3.5584704727029E+39
2 √n
9018.3344360253
3 √n
433.26229026008
4 √n
94.964911604367
5 √n
38.198871659711
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81330355
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330356 can be divided by 6 positive divisors.
The sum of these divisors (counting 81330356) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110110010000000010110100
3
Ternary
12200001000021102
4
Quaternary
10312100002310
5
Quinary
131310032411
6
Senary
12023105232
8
Octal
466200264
10
Decimal
81330356
12
Duodecimal
232a2218
16
Hexadecimal
4d900b4
20
Vigesimal
15865hg
36
Base36
1cf6wk
md5
ab8dbae92006dead108d1fae594248c1
sha1
a06923952806b22f98c2822abd68563fb9f9a172
sha256
616a57622834809f6eafaa07c3cad0f888a354805c0fe00d03fbc3373358e5a2
sha512
b548b46a85fb65e6d2552afc4bd02266efc85e3900ad0fdee3bd681ae05bb5b1e47194e75b18af2328d0bdd09f1688a514bcfafe966f3ccbffdb47839a66ecc1
ripemd-160
2e7a061de815f649a5d038b13ea6ae250310b35b
Diameter
162660712
Circumference
511013697.84689
Area
2.0780462983382E+16
Volume
2.253443269711E+24
Surface area
8.3121851933527E+16
Circumference
511013697.84689
Perimeter
325321424
Area
6614626807086736
Diagonal
115018492.48783
Surface area
39687760842520416
Volume
5.3796995302751E+23
Space diagonal
140868308.78966
Perimeter
243991068
Area
2.8642174257453E+15
Altitude
70434154.394832
Surface area
2.8642174257453E+15
Volume
6.3400366976727E+22
Height
38339497.495944