81402316 is an even 8-digits composite number following 81402315
and preceding 81402317 . In scientific notation, it is written as 8.1402316 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 40638080 positive integers (up to 81402316) that are relatively prime to 81402316.
81402316 has 12 divisors, whose sum is 142674840
The reverse of 81402316 is 61320418
Previous prime number is 659
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million four hundred two thousand three hundred sixteen
Scientific notation
8.1402316 × 10^7
Engineering notation
8.1402316 × 10^6
Prime Factorization
2 × 2 × 659 × 30881
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40701158
Product of the distinct prime numbers
The prime factorization of 81402316 is 2 × 2 × 659 × 30881.
Since it has a total of 4 prime factors.
2 , 6 , 9 , 96 , 575 , 930 , 4915 , 2847 , 59961 , 56234 , 536651 , 851981 , 1907637 , 6610202 , 39650344 , 59726618 , 470301403 , 353134717 , 2734672463 , 9653860311
n×2
162804632
n×3
244206948
n×4
325609264
n×5
407011580
n÷2
40701158
n÷3
27134105.333333
n÷3
20350579
n÷5
16280463.2
n2
6626337050163856
n3
5.3939918247995E+23
n4
4.3908342702374E+31
n5
3.574240787695E+39
2 √n
9022.323204142
3 √n
433.3900341321
4 √n
94.985910555945
5 √n
38.205628837766
1 , 2 , 4 , 659 , 1318 , 2636 , 30881 , 61762 , 123524 , 20350579 , 40701158 , 81402316
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81402315
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81402316 can be divided by 12 positive divisors.
The sum of these divisors (counting 81402316) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110110100001100111001100
3
Ternary
12200011122222121
4
Quaternary
10312201213030
5
Quinary
131314333231
6
Senary
12024422324
8
Octal
466414714
10
Decimal
81402316
12
Duodecimal
233179a4
16
Hexadecimal
4da19cc
20
Vigesimal
158f5fg
36
Base36
1cgqfg
md5
641a2d9f577d59e74b4c44af0c2e191b
sha1
e98042564d8bee534faade2faffb3346ba4489d0
sha256
4d47cced3448e2b551aa0802a4fda14465b0628d6048003b934c7f7bdfc5dd01
sha512
057532b4515d7e8c3369ef6bd9c232efd636e74a3564744026aad957b396965a284055858904a2f393f1ab765847d585c001887be9ed3e8105ecfc224d949180
ripemd-160
d50749ea0c47c2655f5bbe2e98756387af3dc27d
Diameter
162804632
Circumference
511465835.86159
Area
2.0817251797005E+16
Volume
2.2594300120418E+24
Surface area
8.3269007188019E+16
Circumference
511465835.86159
Perimeter
325609264
Area
6626337050163856
Diagonal
115120259.29578
Surface area
39758022300983136
Volume
5.3939918247995E+23
Space diagonal
140992947.16578
Perimeter
244206948
Area
2.86928810974E+15
Altitude
70496473.582888
Surface area
2.86928810974E+15
Volume
6.3568803283008E+22
Height
38373419.76526