81330225 is an odd 8-digits composite number following 81330224
and preceding 81330226 . In scientific notation, it is written as 8.1330225 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 43376080 positive integers (up to 81330225) that are relatively prime to 81330225.
81330225 has 8 divisors, whose sum is 104102784
The reverse of 81330225 is 52203318
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
eighty-one million three hundred thirty thousand two hundred twenty-five
Scientific notation
8.1330225 × 10^7
Engineering notation
8.1330225 × 10^6
Prime Factorization
15 × 5 × 1084403
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330225
Product of the distinct prime numbers
The prime factorization of 81330225 is 15 × 5 × 1084403.
Since it has a total of 3 prime factors.
4 , 8 , 37 , 40 , 445 , 948 , 4169 , 3556 , 6106 , 84584 , 282369 , 544609 , 1900709 , 9412454 , 88869698 , 11144947 , 574008448 , 701946238 , 2546134935 , 1794986313
n×2
162660450
n×3
243990675
n×4
325320900
n×5
406651125
n÷2
40665112.5
n÷3
27110075
n÷3
20332556.25
n÷5
16266045
n2
6614605498550625
n3
5.3796735348336E+23
n4
4.3753005901456E+31
n5
3.5584418143918E+39
2 √n
9018.3271730405
3 √n
433.26205763931
4 √n
94.964873364
5 √n
38.198859354207
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
-81330224
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 81330225 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330225) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000000110001
3
Ternary
12200001000002120
4
Quaternary
10312100000301
5
Quinary
131310031400
6
Senary
12023104453
8
Octal
466200061
10
Decimal
81330225
12
Duodecimal
232a2129
16
Hexadecimal
4d90031
20
Vigesimal
15865b5
36
Base36
1cf6sx
md5
1cd09b5e4bff0630969a14908dc102c1
sha1
9895c320eee3dfab1a55fa328055cbf5ec7f4c05
sha256
f8f4040249e8b71abea1e729721917855a01b08c1e8da0e5274f0e8e3d58ccb7
sha512
7cb8579edf6c9889ae4f14ecff91aa411b93c7f400ee7599ed901054779e900f4176d3fde84089552553286ff812c441b8af755a675771c1649dd062507bee4b
ripemd-160
9c4395bcf75dde9cd47c8570694d6f8a5f68bf26
Diameter
162660450
Circumference
511012874.74961
Area
2.0780396040641E+16
Volume
2.253432380766E+24
Surface area
8.3121584162565E+16
Circumference
511012874.74961
Perimeter
325320900
Area
6614605498550625
Diagonal
115018307.22586
Surface area
39687632991303750
Volume
5.3796735348336E+23
Space diagonal
140868081.89101
Perimeter
243990675
Area
2.8642081988785E+15
Altitude
70434040.945504
Surface area
2.8642081988785E+15
Volume
6.3400060617511E+22
Height
38339435.741952