165668081 is an odd 9-digits composite number following 165668080
and preceding 165668082 . In scientific notation, it is written as 1.65668081 × 10^8.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 165577200 positive integers (up to 165668081) that are relatively prime to 165668081.
165668081 has 4 divisors, whose sum is 165758964
The reverse of 165668081 is 180866561
Previous prime number is 1861
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
one hundred sixty-five million six hundred sixty-eight thousand eighty-one
Scientific notation
1.65668081 × 10^8
Engineering notation
1.65668081 × 10^6
Prime Factorization
1861 × 89021
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
165668081
Product of the distinct prime numbers
The prime factorization of 165668081 is 1861 × 89021.
Since it has a total of 2 prime factors.
6 , 4 , 63 , 27 , 490 , 913 , 3119 , 8920 , 68743 , 21037 , 788394 , 784093 , 8726672 , 9841423 , 61209688 , 71100084 , 796093141 , 541949193 , 2385257699 , 3330661725
n×2
331336162
n×3
497004243
n×4
662672324
n×5
828340405
n÷2
82834040.5
n÷3
55222693.666667
n÷3
41417020.25
n÷5
33133616.2
n2
27445913062222561
n3
4.5469117483112E+24
n4
7.5327814381908E+32
n5
1.2479414454575E+41
2 √n
12871.211326056
3 √n
549.21992000969
4 √n
113.45136105863
5 √n
44.040046447315
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-165668080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 165668081 can be divided by 4 positive divisors.
The sum of these divisors (counting 165668081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111111110010011110001
3
Ternary
102112201210212212
4
Quaternary
21313332103301
5
Quinary
314402334311
6
Senary
24234501505
8
Octal
1167762361
10
Decimal
165668081
12
Duodecimal
47594895
16
Hexadecimal
9dfe4f1
20
Vigesimal
2bf8a41
36
Base36
2qmub5
md5
ea763e0d6a3f940490dddee33134e771
sha1
663a4e25f575b3948fc23ed0ec16a3a8d0c262ff
sha256
74739c83cbdf7622bbf1ed3e7465cf772b67060dafd094d9c315a667dcb14045
sha512
cd8a0a8926b9b6aba5bfeecccc3b04f4058fe5bcaf4ef472978622f890b7cbbfdda3174920cde1e54a1a64b579371bf0621da905db6efe1bcfb57a5c5ad9d48b
ripemd-160
d367ed03de50d6d0ddf814729a53956aaa264343
Diameter
331336162
Circumference
1040923252.4078
Area
8.6223878847343E+16
Volume
1.9046059393354E+25
Surface area
3.4489551538937E+17
Circumference
1040923252.4078
Perimeter
662672324
Area
27445913062222561
Diagonal
234290047.00252
Surface area
164675478373335366
Volume
4.5469117483112E+24
Space diagonal
286945533.48444
Perimeter
497004243
Area
1.1884428970972E+16
Altitude
143472766.74222
Surface area
1.1884428970972E+16
Volume
5.3585868844794E+23
Height
78096682.334175