81097923 is an odd 8-digits composite number following 81097922
and preceding 81097924 . In scientific notation, it is written as 8.1097923 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 54065280 positive integers (up to 81097923) that are relatively prime to 81097923.
81097923 has 4 divisors, whose sum is 108130568
The reverse of 81097923 is 32979018
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million ninety-seven thousand nine hundred twenty-three
Scientific notation
8.1097923 × 10^7
Engineering notation
8.1097923 × 10^6
Prime Factorization
3 × 27032641
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81097923
Product of the distinct prime numbers
The prime factorization of 81097923 is 3 × 27032641.
Since it has a total of 2 prime factors.
2 , 6 , 6 , 34 , 899 , 636 , 5042 , 7664 , 58153 , 12283 , 893018 , 348246 , 5528521 , 7694439 , 40402476 , 4858235 , 462281607 , 21933904 , 8489032811 , 5023415225
n×2
162195846
n×3
243293769
n×4
324391692
n×5
405489615
n÷2
40548961.5
n÷3
27032641
n÷3
20274480.75
n÷5
16219584.6
n2
6576873114913929
n3
5.3337074945406E+23
n4
4.3255259969678E+31
n5
3.5079117423659E+39
2 √n
9005.4385234701
3 √n
432.84915816741
4 √n
94.896989011613
5 √n
38.177013042787
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
-81097922
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 81097923 can be divided by 4 positive divisors.
The sum of these divisors (counting 81097923) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101010111010011000011
3
Ternary
12122121012102210
4
Quaternary
10311113103003
5
Quinary
131230113143
6
Senary
12014113203
8
Octal
465272303
10
Decimal
81097923
12
Duodecimal
231ab803
16
Hexadecimal
4d574c3
20
Vigesimal
156h4g3
36
Base36
1ca7k3
md5
1a29756df16af35eacf415951fa2a913
sha1
d41437a5d9ee4d328332f0bcae271589324fb528
sha256
90337a0d32ffbc4cd80afe762f968ec93c61165a29ec132d63f6db64d44cc11d
sha512
97a1b92e26be3c6bc4bd6c622895c6fa9eebb3adab4015daa88e7b1fc4adac720391d6bf1a57ff04a3c08f74c061505c4c458f93bbd3ebee1feef91f2e8da5fd
ripemd-160
a2df33435ce603b6706ad0cdc3d851fdc01581cc
Diameter
162195846
Circumference
509553278.23638
Area
2.0661856261406E+16
Volume
2.2341781708327E+24
Surface area
8.2647425045623E+16
Circumference
509553278.23638
Perimeter
324391692
Area
6576873114913929
Diagonal
114689782.58689
Surface area
39461238689483574
Volume
5.3337074945406E+23
Space diagonal
140465723.02431
Perimeter
243293769
Area
2.8478695974912E+15
Altitude
70232861.512154
Surface area
2.8478695974912E+15
Volume
6.2858345637586E+22
Height
38229927.528963