81298522 is an even 8-digits composite number following 81298521
and preceding 81298523 . In scientific notation, it is written as 8.1298522 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 37905408 positive integers (up to 81298522) that are relatively prime to 81298522.
81298522 has 16 divisors, whose sum is 130311720
The reverse of 81298522 is 22589218
Previous prime number is 109
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million two hundred ninety-eight thousand five hundred twenty-two
Scientific notation
8.1298522 × 10^7
Engineering notation
8.1298522 × 10^6
Prime Factorization
2 × 17 × 109 × 21937
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81298522
Product of the distinct prime numbers
The prime factorization of 81298522 is 2 × 17 × 109 × 21937.
Since it has a total of 4 prime factors.
2 , 4 , 50 , 89 , 740 , 143 , 9426 , 4609 , 85054 , 62788 , 37595 , 19756 , 590674 , 3999713 , 19890746 , 44221399 , 453179440 , 984905497 , 9878613532 , 872055143
n×2
162597044
n×3
243895566
n×4
325194088
n×5
406492610
n÷2
40649261
n÷3
27099507.333333
n÷3
20324630.5
n÷5
16259704.4
n2
6609449679384484
n3
5.3733849016733E+23
n4
4.3684825064316E+31
n5
3.5515117115574E+39
2 √n
9016.5693032328
3 √n
433.2057542902
4 √n
94.955617544371
5 √n
38.195880861753
1 , 2 , 17 , 34 , 109 , 218 , 1853 , 3706 , 21937 , 43874 , 372929 , 745858 , 2391133 , 4782266 , 40649261 , 81298522
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81298521
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81298522 can be divided by 16 positive divisors.
The sum of these divisors (counting 81298522) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110001000010001011010
3
Ternary
12122222101121101
4
Quaternary
10312020101122
5
Quinary
131303023042
6
Senary
12022302014
8
Octal
466102132
10
Decimal
81298522
12
Duodecimal
2328790a
16
Hexadecimal
4d8845a
20
Vigesimal
1582662
36
Base36
1ceica
md5
740efce07c771a877a0654faae59a9ca
sha1
ee6a7484dc23e2571d6a78cacc0644fbe0b07f72
sha256
2b5f6ab59d2fed5d6c32ccba096de672f74746fdca7439db659b3ee500402571
sha512
fb521d1b72dbf71ad0739ee9c8c0b5f5eb6d422e2bf3d8524f1e1847b74843710825bfeb8ae252e384eb3382ddad76ad43af030a5a1869ccc59a5599d86d8e16
ripemd-160
4e838f095d6a4140afe452b400c748e03167d1ae
Diameter
162597044
Circumference
510813678.92582
Area
2.0764198557026E+16
Volume
2.2507982042676E+24
Surface area
8.3056794228103E+16
Circumference
510813678.92582
Perimeter
325194088
Area
6609449679384484
Diagonal
114973472.41329
Surface area
39656698076306904
Volume
5.3733849016733E+23
Space diagonal
140813170.68426
Perimeter
243895566
Area
2.8619756636909E+15
Altitude
70406585.342128
Surface area
2.8619756636909E+15
Volume
6.3325948364977E+22
Height
38324490.804429