81298082 is an even 8-digits composite number following 81298081
and preceding 81298083 . In scientific notation, it is written as 8.1298082 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 40649040 positive integers (up to 81298082) that are relatively prime to 81298082.
81298082 has 4 divisors, whose sum is 121947126
The reverse of 81298082 is 28089218
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million two hundred ninety-eight thousand eighty-two
Scientific notation
8.1298082 × 10^7
Engineering notation
8.1298082 × 10^6
Prime Factorization
2 × 40649041
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81298082
Product of the distinct prime numbers
The prime factorization of 81298082 is 2 × 40649041.
Since it has a total of 2 prime factors.
1 , 7 , 89 , 89 , 871 , 353 , 9704 , 3680 , 54702 , 72111 , 131599 , 601434 , 87059 , 9092520 , 15516810 , 63334686 , 508723625 , 897299344 , 4570397377 , 2139806395
n×2
162596164
n×3
243894246
n×4
325192328
n×5
406490410
n÷2
40649041
n÷3
27099360.666667
n÷3
20324520.5
n÷5
16259616.4
n2
6609378136878724
n3
5.3732976574097E+23
n4
4.368387935625E+31
n5
3.5514156059826E+39
2 √n
9016.5449036757
3 √n
433.20497276359
4 √n
94.955489065539
5 √n
38.195839517277
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
-81298081
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 81298082 can be divided by 4 positive divisors.
The sum of these divisors (counting 81298082) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110001000001010100010
3
Ternary
12122222101000002
4
Quaternary
10312020022202
5
Quinary
131303014312
6
Senary
12022300002
8
Octal
466101242
10
Decimal
81298082
12
Duodecimal
23287602
16
Hexadecimal
4d882a2
20
Vigesimal
1582542
36
Base36
1cei02
md5
1ed15a7f1ba908ba25857d569cf539ee
sha1
e45b66016ab410b241d8df0d9cd962a34ff6b392
sha256
60506c25673706cf2d5bf283e71a7f66116b5f179adcb7aaa169caeeba78a0c0
sha512
ef8ec5497bfa82ef707ffa68a96bfdff6ed2b9f3d11ec0b10fbc197e6243e1a330a0ba2d2f30cfe361ce5b44d781a76dbe9c27b74ac758019a490d4ef0ac7c62
ripemd-160
f3584073e0900e18eb3318c7a226e2b20c183b01
Diameter
162596164
Circumference
510810914.32428
Area
2.0763973799615E+16
Volume
2.250761659476E+24
Surface area
8.3055895198461E+16
Circumference
510810914.32428
Perimeter
325192328
Area
6609378136878724
Diagonal
114972850.15932
Surface area
39656268821272344
Volume
5.3732976574097E+23
Space diagonal
140812408.5819
Perimeter
243894246
Area
2.8619446848772E+15
Altitude
70406204.29095
Surface area
2.8619446848772E+15
Volume
6.332492018147E+22
Height
38324283.38644