81640503 is an odd 8-digits composite number following 81640502
and preceding 81640504 . In scientific notation, it is written as 8.1640503 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 46651680 positive integers (up to 81640503) that are relatively prime to 81640503.
81640503 has 8 divisors, whose sum is 114037616
The reverse of 81640503 is 30504618
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million six hundred forty thousand five hundred three
Scientific notation
8.1640503 × 10^7
Engineering notation
8.1640503 × 10^6
Prime Factorization
3 × 21 × 1295881
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81640503
Product of the distinct prime numbers
The prime factorization of 81640503 is 3 × 21 × 1295881.
Since it has a total of 3 prime factors.
2 , 10 , 53 , 37 , 254 , 115 , 198 , 914 , 79947 , 73822 , 81136 , 770538 , 3192276 , 3831001 , 52783331 , 9478052 , 805250300 , 774043366 , 8351361471 , 2472810993
n×2
163281006
n×3
244921509
n×4
326562012
n×5
408202515
n÷2
40820251.5
n÷3
27213501
n÷3
20410125.75
n÷5
16328100.6
n2
6665171730093009
n3
5.4414797262617E+23
n4
4.4424514191631E+31
n5
3.6268396841354E+39
2 √n
9035.5134331149
3 √n
433.81232904653
4 √n
95.055317752953
5 √n
38.22796100794
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
-81640502
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 81640503 can be divided by 8 positive divisors.
The sum of these divisors (counting 81640503) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111011011110000110111
3
Ternary
12200121202201100
4
Quaternary
10313123300313
5
Quinary
131344444003
6
Senary
12033501143
8
Octal
467336067
10
Decimal
81640503
12
Duodecimal
234117b3
16
Hexadecimal
4ddbc37
20
Vigesimal
15a5153
36
Base36
1clu7r
md5
3ed1bac1782ee9e9e1ab1627fe062779
sha1
bee6027ef747f753d58b956671d47e6fb25435ef
sha256
9762fc7e98800c8cf4a2b02af7b44c5bebfb7e893646c88511548b8fceb3aebe
sha512
7f2d31421774f17e61ec6cef47ba56902000289a03de8558b714d1b6cdc654bd43d67a5db6d81c6bd90342e204861fc082d58a5313f585a9c538d660baf38ccd
ripemd-160
7c6bdd9e3d6e2bda633d6c32b0561861dd97c0c0
Diameter
163281006
Circumference
512962408.92035
Area
2.0939254542175E+16
Volume
2.2793216976909E+24
Surface area
8.3757018168698E+16
Circumference
512962408.92035
Perimeter
326562012
Area
6665171730093009
Diagonal
115457106.58156
Surface area
39991030380558054
Volume
5.4414797262617E+23
Space diagonal
141405499.15148
Perimeter
244921509
Area
2.8861040194232E+15
Altitude
70702749.57574
Surface area
2.8861040194232E+15
Volume
6.4128453568813E+22
Height
38485702.193854