81649103 is an odd 8-digits composite number following 81649102
and preceding 81649104 . In scientific notation, it is written as 8.1649103 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 77702328 positive integers (up to 81649103) that are relatively prime to 81649103.
81649103 has 8 divisors, whose sum is 85632000
The reverse of 81649103 is 30194618
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million six hundred forty-nine thousand one hundred three
Scientific notation
8.1649103 × 10^7
Engineering notation
8.1649103 × 10^6
Prime Factorization
23 × 199 × 17839
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81649103
Product of the distinct prime numbers
The prime factorization of 81649103 is 23 × 199 × 17839.
Since it has a total of 3 prime factors.
1 , 8 , 75 , 50 , 124 , 473 , 7569 , 7783 , 80140 , 73958 , 498207 , 822861 , 3228036 , 1227009 , 14045737 , 48339289 , 727888403 , 728582418 , 1507520895 , 3232930524
n×2
163298206
n×3
244947309
n×4
326596412
n×5
408245515
n÷2
40824551.5
n÷3
27216367.666667
n÷3
20412275.75
n÷5
16329820.6
n2
6666576020704609
n3
5.4431995217184E+23
n4
4.4443235839834E+31
n5
3.6287503407399E+39
2 √n
9035.9893204895
3 √n
433.82756108986
4 √n
95.057820932785
5 √n
38.228766359697
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81649102
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81649103 can be divided by 8 positive divisors.
The sum of these divisors (counting 81649103) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111011101110111001111
3
Ternary
12200122012111212
4
Quaternary
10313131313033
5
Quinary
131400232403
6
Senary
12034005035
8
Octal
467356717
10
Decimal
81649103
12
Duodecimal
2341677b
16
Hexadecimal
4ddddcf
20
Vigesimal
15a62f3
36
Base36
1cm0un
md5
2a3c17ccc31f61693742a0c78d1562f8
sha1
2d68b48e9e91020bf7546b8280c04559881f729b
sha256
1208c6d107c0f9c7278f87daa8eb610937b6d3afb7aa80dd35600c2cbdbaf3cf
sha512
1fce62ea6a3a049b01740d6394558676fbd0ad4c4869c40d1d29b17ca842d0929ae98d0149ba3ec2d73313512e2f9ffbda7558cc4a9e1735cccebd025d432932
ripemd-160
78bd2c973c687a994a04cef2d94858117cd3de60
Diameter
163298206
Circumference
513016444.31399
Area
2.0943666251243E+16
Volume
2.2800420839272E+24
Surface area
8.3774665004974E+16
Circumference
513016444.31399
Perimeter
326596412
Area
6666576020704609
Diagonal
115469268.8182
Surface area
39999456124227654
Volume
5.4431995217184E+23
Space diagonal
141420394.78842
Perimeter
244947309
Area
2.8867120950952E+15
Altitude
70710197.394212
Surface area
2.8867120950952E+15
Volume
6.4148721552641E+22
Height
38489756.272733