81342655 is an odd 8-digits composite number following 81342654
and preceding 81342656 . In scientific notation, it is written as 8.1342655 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 65074120 positive integers (up to 81342655) that are relatively prime to 81342655.
81342655 has 4 divisors, whose sum is 97611192
The reverse of 81342655 is 55624318
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million three hundred forty-two thousand six hundred fifty-five
Scientific notation
8.1342655 × 10^7
Engineering notation
8.1342655 × 10^6
Prime Factorization
5 × 16268531
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81342655
Product of the distinct prime numbers
The prime factorization of 81342655 is 5 × 16268531.
Since it has a total of 2 prime factors.
2 , 4 , 89 , 9 , 729 , 314 , 6222 , 5688 , 49790 , 26786 , 295672 , 39901 , 6627001 , 7135062 , 46529117 , 71662466 , 761431693 , 416789625 , 4246474123 , 6763642781
n×2
162685310
n×3
244027965
n×4
325370620
n×5
406713275
n÷2
40671327.5
n÷3
27114218.333333
n÷3
20335663.75
n÷5
16268531
n2
6616627522449025
n3
5.3821404982208E+23
n4
4.377975977083E+31
n5
3.5611618950215E+39
2 √n
9019.0162989098
3 √n
433.28412886412
4 √n
94.968501614534
5 √n
38.200026897509
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
-81342654
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 81342655 can be divided by 4 positive divisors.
The sum of these divisors (counting 81342655) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010011000010111111
3
Ternary
12200001122010221
4
Quaternary
10312103002333
5
Quinary
131310431110
6
Senary
12023242211
8
Octal
466230277
10
Decimal
81342655
12
Duodecimal
232a9367
16
Hexadecimal
4d930bf
20
Vigesimal
1587gcf
36
Base36
1cfge7
md5
6537a85aaefcb732c029eda05599a684
sha1
d2555391a245b3d19960debbea86a2e8f6bfcdd9
sha256
b14aeceafe54bb0274ec60a299e03e713bbfff161d31aca2bc62e25c2db0400f
sha512
0b231dd4ba386a4e4045aad4501d97c154a3ed2da342a7ba32f827525ad7486ddef9e6a54ae8a4ee167bca1d27e78840cd2d9257ff071b694f87de24f94a7776
ripemd-160
c0945dfd67f0682cacb7cf2184644c8ed3de0e0b
Diameter
162685310
Circumference
511090974.74298
Area
2.0786748416066E+16
Volume
2.2544657399731E+24
Surface area
8.3146993664264E+16
Circumference
511090974.74298
Perimeter
325370620
Area
6616627522449025
Diagonal
115035885.90044
Surface area
39699765134694150
Volume
5.3821404982208E+23
Space diagonal
140889611.28255
Perimeter
244027965
Area
2.8650837609101E+15
Altitude
70444805.641273
Surface area
2.8650837609101E+15
Volume
6.3429134059844E+22
Height
38345295.300145