81649102 is an even 8-digits composite number following 81649101
and preceding 81649103 . In scientific notation, it is written as 8.1649102 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 39507600 positive integers (up to 81649102) that are relatively prime to 81649102.
81649102 has 8 divisors, whose sum is 126424512
The reverse of 81649102 is 20194618
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million six hundred forty-nine thousand one hundred two
Scientific notation
8.1649102 × 10^7
Engineering notation
8.1649102 × 10^6
Prime Factorization
2 × 31 × 1316921
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81649102
Product of the distinct prime numbers
The prime factorization of 81649102 is 2 × 31 × 1316921.
Since it has a total of 3 prime factors.
5 , 10 , 69 , 24 , 191 , 731 , 264 , 2348 , 46270 , 92762 , 927717 , 76696 , 6324947 , 2246041 , 10557315 , 98307426 , 268738877 , 282721504 , 9280377740 , 9077986817
n×2
163298204
n×3
244947306
n×4
326596408
n×5
408245510
n÷2
40824551
n÷3
27216367.333333
n÷3
20412275.5
n÷5
16329820.4
n2
6666575857406404
n3
5.4431993217211E+23
n4
4.4443233662554E+31
n5
3.6287501185237E+39
2 √n
9035.9892651552
3 √n
433.82755931876
4 √n
95.057820641729
5 √n
38.228766266056
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
-81649101
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 81649102 can be divided by 8 positive divisors.
The sum of these divisors (counting 81649102) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111011101110111001110
3
Ternary
12200122012111211
4
Quaternary
10313131313032
5
Quinary
131400232402
6
Senary
12034005034
8
Octal
467356716
10
Decimal
81649102
12
Duodecimal
2341677a
16
Hexadecimal
4ddddce
20
Vigesimal
15a62f2
36
Base36
1cm0um
md5
9f8c02718cd019f1998f5b41bf3bfcd8
sha1
df5fc484b5d33eaa8db66b436614ae0b5822c910
sha256
04f991b167462e36040ead95b7e991701ecc4d932747ae8ba192d1859ade69f9
sha512
f6e99db59d95690f76066c85236b44ef4ebd7b8d6b96acf54afe0374633c9a8383c60725797a3b42453b92c83e056a43d861c49865be2bcac285f697bdb686e1
ripemd-160
4e2d8e87890ddceacba354889d08328a3b13f4a8
Diameter
163298204
Circumference
513016438.03081
Area
2.0943665738227E+16
Volume
2.2800420001525E+24
Surface area
8.3774662952908E+16
Circumference
513016438.03081
Perimeter
326596408
Area
6666575857406404
Diagonal
115469267.40398
Surface area
39999455144438424
Volume
5.4431993217211E+23
Space diagonal
141420393.05637
Perimeter
244947306
Area
2.886712024385E+15
Altitude
70710196.528187
Surface area
2.886712024385E+15
Volume
6.414871919565E+22
Height
38489755.801328