81330369 is an odd 8-digits composite number following 81330368
and preceding 81330370 . In scientific notation, it is written as 8.1330369 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 51862800 positive integers (up to 81330369) that are relatively prime to 81330369.
81330369 has 4 divisors, whose sum is 82509140
The reverse of 81330369 is 96303318
Previous prime number is 69
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million three hundred thirty thousand three hundred sixty-nine
Scientific notation
8.1330369 × 10^7
Engineering notation
8.1330369 × 10^6
Prime Factorization
69 × 1178701
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81330369
Product of the distinct prime numbers
The prime factorization of 81330369 is 69 × 1178701.
Since it has a total of 2 prime factors.
8 , 2 , 32 , 95 , 378 , 612 , 9283 , 1988 , 20283 , 35626 , 462885 , 113430 , 6127736 , 7071343 , 57543108 , 51662092 , 426029684 , 952607183 , 3309016627 , 1267357253
n×2
162660738
n×3
243991107
n×4
325321476
n×5
406651845
n÷2
40665184.5
n÷3
27110123
n÷3
20332592.25
n÷5
16266073.8
n2
6614628921676161
n3
5.3797021099799E+23
n4
4.3753315771475E+31
n5
3.5584733166676E+39
2 √n
9018.3351567792
3 √n
433.26231334457
4 √n
94.964915399211
5 √n
38.198872880867
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
-81330368
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 81330369 can be divided by 4 positive divisors.
The sum of these divisors (counting 81330369) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010000000011000001
3
Ternary
12200001000021220
4
Quaternary
10312100003001
5
Quinary
131310032434
6
Senary
12023105253
8
Octal
466200301
10
Decimal
81330369
12
Duodecimal
232a2229
16
Hexadecimal
4d900c1
20
Vigesimal
15865i9
36
Base36
1cf6wx
md5
34e156c29de92d915cda7575d58f7222
sha1
dd4d528e2f655bec3012cf710566c815693c75d7
sha256
df353a70136569e3d8db170e538d7a31c589e71db05ed33c9a05eae2ca22e44a
sha512
73f73f3981693d7430317a5bc6b7c77b95545fa4771bc7c0485e6f799623a9b0d935e224dff8899ff0696e22c0df6306dbac611bf5bd7a21fdc26a83ebcd3b0a
ripemd-160
70b9b9ba7f5d9833588cad186573b5defaa2fa0c
Diameter
162660738
Circumference
511013779.52829
Area
2.078046962656E+16
Volume
2.2534443502953E+24
Surface area
8.3121878506242E+16
Circumference
511013779.52829
Perimeter
325321476
Area
6614628921676161
Diagonal
115018510.87261
Surface area
39687773530056966
Volume
5.3797021099799E+23
Space diagonal
140868331.30632
Perimeter
243991107
Area
2.8642183413894E+15
Altitude
70434165.653162
Surface area
2.8642183413894E+15
Volume
6.340039737884E+22
Height
38339503.624203