81330382 is an even 8-digits composite number following 81330381
and preceding 81330383 . In scientific notation, it is written as 8.1330382 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 34855872 positive integers (up to 81330382) that are relatively prime to 81330382.
81330382 has 8 divisors, whose sum is 139423536
The reverse of 81330382 is 28303318
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million three hundred thirty thousand three hundred eighty-two
Scientific notation
8.1330382 × 10^7
Engineering notation
8.1330382 × 10^6
Prime Factorization
2 × 7 × 5809313
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330382
Product of the distinct prime numbers
The prime factorization of 81330382 is 2 × 7 × 5809313.
Since it has a total of 3 prime factors.
3 , 4 , 30 , 10 , 329 , 488 , 9200 , 3940 , 79355 , 62511 , 261302 , 614912 , 8615433 , 7257729 , 67520412 , 97903047 , 874962367 , 825804385 , 7592788871 , 248876200
n×2
162660764
n×3
243991146
n×4
325321528
n×5
406651910
n÷2
40665191
n÷3
27110127.333333
n÷3
20332595.5
n÷5
16266076.4
n2
6614631036265924
n3
5.3797046896856E+23
n4
4.3753343745932E+31
n5
3.558476160634E+39
2 √n
9018.3358775331
3 √n
433.26233642906
4 √n
94.964919194053
5 √n
38.198874102023
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
-81330381
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 81330382 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330382) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000011001110
3
Ternary
12200001000022101
4
Quaternary
10312100003032
5
Quinary
131310033012
6
Senary
12023105314
8
Octal
466200316
10
Decimal
81330382
12
Duodecimal
232a223a
16
Hexadecimal
4d900ce
20
Vigesimal
15865j2
36
Base36
1cf6xa
md5
02ca55c6f30b2bd36ae470db6bfe6c13
sha1
c5f9898951dda51269e9b767047aa2fa46eb8a5a
sha256
39083453a3d4a0d69a34b327415a3f16205b2f7dd265aabf6a36a10b2877a827
sha512
452d1b727bd77950710427fad6e3ae0ae23105c9506d53b95ff5d7ea3177c32a5531ac37a55c2812917a00418fc2af99a6806fe98f2de289700b7551012b3948
ripemd-160
edde4390a274261a2277b08ddf3e9886338bb2ba
Diameter
162660764
Circumference
511013861.2097
Area
2.078047626974E+16
Volume
2.2534454308799E+24
Surface area
8.312190507896E+16
Circumference
511013861.2097
Perimeter
325321528
Area
6614631036265924
Diagonal
115018529.25738
Surface area
39687786217595544
Volume
5.3797046896856E+23
Space diagonal
140868353.82299
Perimeter
243991146
Area
2.8642192570336E+15
Altitude
70434176.911493
Surface area
2.8642192570336E+15
Volume
6.3400427780963E+22
Height
38339509.752462