81129323 is an odd 8-digits composite number following 81129322
and preceding 81129324 . In scientific notation, it is written as 8.1129323 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 73753920 positive integers (up to 81129323) that are relatively prime to 81129323.
81129323 has 4 divisors, whose sum is 88504728
The reverse of 81129323 is 32392118
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million one hundred twenty-nine thousand three hundred twenty-three
Scientific notation
8.1129323 × 10^7
Engineering notation
8.1129323 × 10^6
Prime Factorization
11 × 7375393
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81129323
Product of the distinct prime numbers
The prime factorization of 81129323 is 11 × 7375393.
Since it has a total of 2 prime factors.
3 , 10 , 21 , 82 , 781 , 700 , 9122 , 620 , 86897 , 78905 , 863867 , 519699 , 4840024 , 1503096 , 33417548 , 11753192 , 132933459 , 640360384 , 5617352036 , 8573005370
n×2
162258646
n×3
243387969
n×4
324517292
n×5
405646615
n÷2
40564661.5
n÷3
27043107.666667
n÷3
20282330.75
n÷5
16225864.6
n2
6581967050438329
n3
5.3399053081037E+23
n4
4.3322290253056E+31
n5
3.5147080790399E+39
2 √n
9007.181745696
3 √n
432.90501537188
4 √n
94.906173380324
5 √n
38.179968907873
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
-81129322
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 81129323 can be divided by 4 positive divisors.
The sum of these divisors (counting 81129323) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011110111101101011
3
Ternary
12122122210111202
4
Quaternary
10311132331223
5
Quinary
131232114243
6
Senary
12014514415
8
Octal
465367553
10
Decimal
81129323
12
Duodecimal
23205a0b
16
Hexadecimal
4d5ef6b
20
Vigesimal
1571363
36
Base36
1cavsb
md5
d11032e8acdce6a13794e0a235bfb39a
sha1
58ba01684dbe00f3d2d6c134264a25489630e644
sha256
a8612c0af59f0c67e69bc9bbba8635c3139070d4d18ce13c1e7380cfcbef6618
sha512
14c02b1debec8c5418d315710fc82a25667f35a2e05b5454e4ea69737abcb1248147ba697b75f8701a9f47cb1437ee8529087b91b5e51f78623a4239001864d6
ripemd-160
aa80fb1bd6423b1181a15e62baf39b224b7530d1
Diameter
162258646
Circumference
509750570.25503
Area
2.0677859331827E+16
Volume
2.2367743049072E+24
Surface area
8.2711437327309E+16
Circumference
509750570.25503
Perimeter
324517292
Area
6581967050438329
Diagonal
114734188.89275
Surface area
39491802302629974
Volume
5.3399053081037E+23
Space diagonal
140520109.41967
Perimeter
243387969
Area
2.8500753362759E+15
Altitude
70260054.709833
Surface area
2.8500753362759E+15
Volume
6.2931387570903E+22
Height
38244729.630916