81602009 is an odd 8-digits composite number following 81602008
and preceding 81602010 . In scientific notation, it is written as 8.1602009 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 80967600 positive integers (up to 81602009) that are relatively prime to 81602009.
81602009 has 8 divisors, whose sum is 82239360
The reverse of 81602009 is 90020618
Previous prime number is 421
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million six hundred two thousand nine
Scientific notation
8.1602009 × 10^7
Engineering notation
8.1602009 × 10^6
Prime Factorization
239 × 421 × 811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81602009
Product of the distinct prime numbers
The prime factorization of 81602009 is 239 × 421 × 811.
Since it has a total of 3 prime factors.
8 , 6 , 77 , 14 , 976 , 67 , 8842 , 1635 , 25130 , 2504 , 749453 , 664219 , 3179442 , 9796296 , 96392872 , 40491081 , 215789205 , 360303875 , 9556639307 , 8064188567
n×2
163204018
n×3
244806027
n×4
326408036
n×5
408010045
n÷2
40801004.5
n÷3
27200669.666667
n÷3
20400502.25
n÷5
16320401.8
n2
6658887872836081
n3
5.4337862812916E+23
n4
4.4340787703003E+31
n5
3.6182973572076E+39
2 √n
9033.3830318436
3 √n
433.74413659934
4 √n
95.04411097929
5 √n
38.224355384033
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
-81602008
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 81602009 can be divided by 8 positive divisors.
The sum of these divisors (counting 81602009) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111010010010111011001
3
Ternary
12200112210220122
4
Quaternary
10313102113121
5
Quinary
131342231014
6
Senary
12033003025
8
Octal
467222731
10
Decimal
81602009
12
Duodecimal
233b3475
16
Hexadecimal
4dd25d9
20
Vigesimal
15a0509
36
Base36
1cl0ih
md5
565034d0c8880d906f6d7d2316b1bc47
sha1
3fe4f6fe2ce7149df48e4943a122b92672483682
sha256
e4ee02aec6f7be3f0458609cc32ede31c8df87ca73d4c925ce95cdb29a2d6d62
sha512
0c90e773d90e409391a1c74c58f3ff710f75438ac47b87363d241e449580c890a4e6a029c672948eecd24b2bd80c5ef3dc743f3214d0e2bb7b13c2c8b8de2d19
ripemd-160
f358a8690bd1b6d88742df49f82c69a4941f0e31
Diameter
163204018
Circumference
512720543.98514
Area
2.091951322238E+16
Volume
2.2760990749977E+24
Surface area
8.367805288952E+16
Circumference
512720543.98514
Perimeter
326408036
Area
6658887872836081
Diagonal
115402667.84469
Surface area
39953327237016486
Volume
5.4337862812916E+23
Space diagonal
141338825.58769
Perimeter
244806027
Area
2.8833830294141E+15
Altitude
70669412.793846
Surface area
2.8833830294141E+15
Volume
6.4037785450329E+22
Height
38467555.94823