81642010 is an even 8-digits composite number following 81642009
and preceding 81642011 . In scientific notation, it is written as 8.1642010 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 32656800 positive integers (up to 81642010) that are relatively prime to 81642010.
81642010 has 8 divisors, whose sum is 146955636
The reverse of 81642010 is 01024618
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million six hundred forty-two thousand ten
Scientific notation
8.1642010 × 10^7
Engineering notation
8.1642010 × 10^6
Prime Factorization
2 × 5 × 8164201
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81642010
Product of the distinct prime numbers
The prime factorization of 81642010 is 2 × 5 × 8164201.
Since it has a total of 3 prime factors.
9 , 8 , 44 , 46 , 565 , 330 , 6917 , 1468 , 70534 , 35771 , 937212 , 384931 , 2079117 , 2398439 , 36923540 , 83571114 , 804780281 , 739997532 , 1857299911 , 7838786194
n×2
163284020
n×3
244926030
n×4
326568040
n×5
408210050
n÷2
40821005
n÷3
27214003.333333
n÷3
20410502.5
n÷5
16328402
n2
6665417796840100
n3
5.441781064238E+23
n4
4.4427794406433E+31
n5
3.6271744352079E+39
2 √n
9035.5968258881
3 √n
433.81499827375
4 √n
95.055756405849
5 √n
38.228102136693
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
-81642009
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 81642010 can be divided by 8 positive divisors.
The sum of these divisors (counting 81642010) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111011100001000011010
3
Ternary
12200121211210011
4
Quaternary
10313130020122
5
Quinary
131400021020
6
Senary
12033512134
8
Octal
467341032
10
Decimal
81642010
12
Duodecimal
2341264a
16
Hexadecimal
4ddc21a
20
Vigesimal
15a550a
36
Base36
1clvdm
md5
72a9501524cc445327b26c3b602869a0
sha1
18f81c43796d20d1bc08bb0e97c63e1ce63666a1
sha256
a9caa9e1a97e49ba834bd8c2f3d6b46bb7ddd50c80af8d27e38367a56abdae1b
sha512
ee2081f741b0cc04e4b15db7e76e6e10d81ba8f6e456b53d4a3dac2d1edae70b86dc36a873a442037e635106115d6a4dca085d07dd71a029879be46429ae4252
ripemd-160
ccaca9eda445d7e3f1733bc32c5f1d38d50b2ce0
Diameter
163284020
Circumference
512971877.68061
Area
2.094002758366E+16
Volume
2.2794479218472E+24
Surface area
8.3760110334638E+16
Circumference
512971877.68061
Perimeter
326568040
Area
6665417796840100
Diagonal
115459237.8014
Surface area
39992506781040600
Volume
5.441781064238E+23
Space diagonal
141408109.35205
Perimeter
244926030
Area
2.8862105694502E+15
Altitude
70704054.676023
Surface area
2.8862105694502E+15
Volume
6.413200487092E+22
Height
38486412.600467