81129635 is an odd 8-digits composite number following 81129634
and preceding 81129636 . In scientific notation, it is written as 8.1129635 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 62809920 positive integers (up to 81129635) that are relatively prime to 81129635.
81129635 has 8 divisors, whose sum is 100496256
The reverse of 81129635 is 53692118
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million one hundred twenty-nine thousand six hundred thirty-five
Scientific notation
8.1129635 × 10^7
Engineering notation
8.1129635 × 10^6
Prime Factorization
5 × 31 × 523417
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81129635
Product of the distinct prime numbers
The prime factorization of 81129635 is 5 × 31 × 523417.
Since it has a total of 3 prime factors.
7 , 5 , 9 , 32 , 645 , 864 , 8370 , 7458 , 80655 , 22418 , 434850 , 272702 , 3906814 , 406993 , 2659716 , 13181581 , 465587072 , 975893867 , 9828906666 , 3455344465
n×2
162259270
n×3
243388905
n×4
324518540
n×5
405648175
n÷2
40564817.5
n÷3
27043211.666667
n÷3
20282408.75
n÷5
16225927
n2
6582017675233225
n3
5.3399669155522E+23
n4
4.3322956677083E+31
n5
3.5147756623325E+39
2 √n
9007.1990651922
3 √n
432.90557031382
4 √n
94.906264625641
5 √n
38.179998273659
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
-81129634
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 81129635 can be divided by 8 positive divisors.
The sum of these divisors (counting 81129635) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011111000010100011
3
Ternary
12122122210221022
4
Quaternary
10311133002203
5
Quinary
131232122020
6
Senary
12014520055
8
Octal
465370243
10
Decimal
81129635
12
Duodecimal
2320602b
16
Hexadecimal
4d5f0a3
20
Vigesimal
157141f
36
Base36
1caw0z
md5
b5d4786b6a5bee12803f12b22b4f3a3b
sha1
07568ebc88e6f3f4be1bb517fcd5f70fa3a8fcf0
sha256
22a269162fe65e7027c28ec972815ff2cc85e24ea43de4708a1b270c140dc245
sha512
ddf9a90a644651662adc65b29ccfcc3ebd762e21f1377553c8be09c4b69d6557ff855158e8ee05bcc0c57becba8652fccea609ded56d842ce24dd6da6ed576ff
ripemd-160
598e412465b9e488aa31c39179bc63985c44db59
Diameter
162259270
Circumference
509752530.60884
Area
2.0678018374311E+16
Volume
2.2368001109748E+24
Surface area
8.2712073497243E+16
Circumference
509752530.60884
Perimeter
324518540
Area
6582017675233225
Diagonal
114734630.12738
Surface area
39492106051399350
Volume
5.3399669155522E+23
Space diagonal
140520649.81952
Perimeter
243388905
Area
2.8500972574551E+15
Altitude
70260324.909759
Surface area
2.8500972574551E+15
Volume
6.2932113621646E+22
Height
38244876.709126