81344243 is an odd 8-digits composite number following 81344242
and preceding 81344244 . In scientific notation, it is written as 8.1344243 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 81098160 positive integers (up to 81344243) that are relatively prime to 81344243.
81344243 has 4 divisors, whose sum is 81590328
The reverse of 81344243 is 34244318
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million three hundred forty-four thousand two hundred forty-three
Scientific notation
8.1344243 × 10^7
Engineering notation
8.1344243 × 10^6
Prime Factorization
331 × 245753
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81344243
Product of the distinct prime numbers
The prime factorization of 81344243 is 331 × 245753.
Since it has a total of 2 prime factors.
3 , 7 , 97 , 91 , 895 , 374 , 7663 , 3877 , 98919 , 19984 , 392597 , 161812 , 2735018 , 2607420 , 30395838 , 23865897 , 449051504 , 198662144 , 8554083877 , 4023946441
n×2
162688486
n×3
244032729
n×4
325376972
n×5
406721215
n÷2
40672121.5
n÷3
27114747.666667
n÷3
20336060.75
n÷5
16268848.6
n2
6616885869243049
n3
5.3824557205097E+23
n4
4.3783178606588E+31
n5
3.5615095198867E+39
2 √n
9019.1043346887
3 √n
433.28694842097
4 √n
94.968965113287
5 √n
38.200176047224
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
-81344242
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 81344243 can be divided by 4 positive divisors.
The sum of these divisors (counting 81344243) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010011011011110011
3
Ternary
12200001201022202
4
Quaternary
10312103123303
5
Quinary
131311003433
6
Senary
12023253415
8
Octal
466233363
10
Decimal
81344243
12
Duodecimal
232aa26b
16
Hexadecimal
4d936f3
20
Vigesimal
15880c3
36
Base36
1cfhmb
md5
b1d869303dc0c37b3b9a95ea4116e96d
sha1
bdf8c03ecf7e275eade96ca3b4b3e07d2cbfd243
sha256
fe86f388f532e7c397acc93ecb70be59467e81b62b31dda43f1322b8d78a8254
sha512
7085b35f0ff8fe81cda2ffba6893d79b9ebe2f888a31849ab2e3c1de570996b6e0d0f25c0df0fcf58d91899b78826e1e1e333eba2077be84884ceecd92324734
ripemd-160
9cbac305669338ae795f8c3936b8f919cf5c372f
Diameter
162688486
Circumference
511100952.44125
Area
2.0787560036456E+16
Volume
2.2545977799768E+24
Surface area
8.3150240145824E+16
Circumference
511100952.44125
Perimeter
325376972
Area
6616885869243049
Diagonal
115038131.67157
Surface area
39701315215458294
Volume
5.3824557205097E+23
Space diagonal
140892361.77923
Perimeter
244032729
Area
2.8651956283534E+15
Altitude
70446180.889614
Surface area
2.8651956283534E+15
Volume
6.3432848990146E+22
Height
38346043.890524