81041431 is an odd 8-digits composite number following 81041430
and preceding 81041432 . In scientific notation, it is written as 8.1041431 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 76274272 positive integers (up to 81041431) that are relatively prime to 81041431.
81041431 has 4 divisors, whose sum is 85808592
The reverse of 81041431 is 13414018
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million forty-one thousand four hundred thirty-one
Scientific notation
8.1041431 × 10^7
Engineering notation
8.1041431 × 10^6
Prime Factorization
17 × 4767143
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81041431
Product of the distinct prime numbers
The prime factorization of 81041431 is 17 × 4767143.
Since it has a total of 2 prime factors.
4 , 7 , 23 , 98 , 885 , 442 , 6798 , 431 , 97360 , 17038 , 628173 , 85322 , 6939382 , 6685258 , 94617027 , 47337043 , 700898805 , 39408142 , 1992530213 , 3824145616
n×2
162082862
n×3
243124293
n×4
324165724
n×5
405207155
n÷2
40520715.5
n÷3
27013810.333333
n÷3
20260357.75
n÷5
16208286.2
n2
6567713538527761
n3
5.3225690356036E+23
n4
4.3134861124161E+31
n5
3.4957108714883E+39
2 √n
9002.3014279683
3 √n
432.74862869338
4 √n
94.880458620141
5 √n
38.171692815276
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
-81041430
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 81041431 can be divided by 4 positive divisors.
The sum of these divisors (counting 81041431) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101001001100000010111
3
Ternary
12122111022221111
4
Quaternary
10311021200113
5
Quinary
131221311211
6
Senary
12012555451
8
Octal
465114027
10
Decimal
81041431
12
Duodecimal
23182b87
16
Hexadecimal
4d49817
20
Vigesimal
156a3bb
36
Base36
1c8zyv
md5
cc606ef41931f2e023a682a48603335a
sha1
8b9d369e3138f22c6ecd94f08062b3915ab8df76
sha256
ca9a9c96f13e3289a649740825cb4112bec8a472070658c22b950b0aa7759ce5
sha512
3e719bd0ee491dbd52f77d6c84d5f1a4374fe985ae2d9065f332ee6ff9a3e9130e34bc49fd840e7a36ae57acc1a211c3d073e6970db14315d814d93f9c229842
ripemd-160
2bf6e503daede0a2ac30d071ebef0d56d4825788
Diameter
162082862
Circumference
509198328.53201
Area
2.0633080603521E+16
Volume
2.2295125040636E+24
Surface area
8.2532322414084E+16
Circumference
509198328.53201
Perimeter
324165724
Area
6567713538527761
Diagonal
114609890.83432
Surface area
39406281231166566
Volume
5.3225690356036E+23
Space diagonal
140367876.01009
Perimeter
243124293
Area
2.843903384572E+15
Altitude
70183938.005044
Surface area
2.843903384572E+15
Volume
6.2727077640148E+22
Height
38203296.944774