81092013 is an odd 8-digits composite number following 81092012
and preceding 81092014 . In scientific notation, it is written as 8.1092013 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 53648400 positive integers (up to 81092013) that are relatively prime to 81092013.
81092013 has 8 divisors, whose sum is 108948576
The reverse of 81092013 is 31029018
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
eighty-one million ninety-two thousand thirteen
Scientific notation
8.1092013 × 10^7
Engineering notation
8.1092013 × 10^6
Prime Factorization
3 × 131 × 206341
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81092013
Product of the distinct prime numbers
The prime factorization of 81092013 is 3 × 131 × 206341.
Since it has a total of 3 prime factors.
1 , 2 , 69 , 32 , 285 , 273 , 5703 , 34 , 95579 , 38195 , 13997 , 458898 , 8263716 , 482227 , 865123 , 2528186 , 733224597 , 282372775 , 5891908718 , 1332065999
n×2
162184026
n×3
243276039
n×4
324368052
n×5
405460065
n÷2
40546006.5
n÷3
27030671
n÷3
20273003.25
n÷5
16218402.6
n2
6575914572392169
n3
5.3325414999132E+23
n4
4.32426524634E+31
n5
3.5066337357165E+39
2 √n
9005.110382444
3 √n
432.83864330433
4 √n
94.895260063103
5 √n
38.17645659765
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
-81092012
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 81092013 can be divided by 8 positive divisors.
The sum of these divisors (counting 81092013) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101010101110110101101
3
Ternary
12122120220022220
4
Quaternary
10311111312231
5
Quinary
131224421023
6
Senary
12014025553
8
Octal
465256655
10
Decimal
81092013
12
Duodecimal
231a82b9
16
Hexadecimal
4d55dad
20
Vigesimal
156ga0d
36
Base36
1ca2zx
md5
a611c873665d886eac7596de7fadf645
sha1
92691c0bcb48f4611d43aaa80d97f26699ebe718
sha256
872dae574d8fb1bd14dcc7656fc13b4007b42ef48f07e68c7d1a054ae2cb5d35
sha512
ed06c2703580b8629e09240de91b4bad6401b209ce085fd862adafcb3607d29118f06abd9af4eb8d231ab900c979a1d42a4a9b8d24e64d690d77837b7b8c0a80
ripemd-160
ce9844a4e9b785c8e3b49dbf5cb8cf457ce81af0
Diameter
162184026
Circumference
509516144.61122
Area
2.0658844911261E+16
Volume
2.2336897601453E+24
Surface area
8.2635379645045E+16
Circumference
509516144.61122
Perimeter
324368052
Area
6575914572392169
Diagonal
114681424.58474
Surface area
39455487434353014
Volume
5.3325414999132E+23
Space diagonal
140455486.60404
Perimeter
243276039
Area
2.847454536404E+15
Altitude
70227743.302018
Surface area
2.847454536404E+15
Volume
6.2844604259121E+22
Height
38227141.528245