81450168 is an even 8-digits composite number following 81450167
and preceding 81450169 . In scientific notation, it is written as 8.1450168 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 16 positive divisors.
There are 27150048 positive integers (up to 81450168) that are relatively prime to 81450168.
81450168 has 16 divisors, whose sum is 203625480
The reverse of 81450168 is 86105418
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million four hundred fifty thousand one hundred sixty-eight
Scientific notation
8.1450168 × 10^7
Engineering notation
8.1450168 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 3393757
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20362542
Product of the distinct prime numbers
The prime factorization of 81450168 is 2 × 2 × 2 × 3 × 3393757.
Since it has a total of 5 prime factors.
7 , 1 , 98 , 45 , 651 , 344 , 9255 , 7318 , 43395 , 82937 , 488675 , 473759 , 9399058 , 2713458 , 19592195 , 49680718 , 627749356 , 77012851 , 2397688976 , 712318982
n×2
162900336
n×3
244350504
n×4
325800672
n×5
407250840
n÷2
40725084
n÷3
27150056
n÷3
20362542
n÷5
16290033.6
n2
6634129867228224
n3
5.4035099221956E+23
n4
4.401167909525E+31
n5
3.5847586562702E+39
2 √n
9024.9746814049
3 √n
433.47493965062
4 √n
94.999866744143
5 √n
38.210119584735
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 3393757 , 6787514 , 10181271 , 13575028 , 20362542 , 27150056 , 40725084 , 81450168
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81450167
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81450168 can be divided by 16 positive divisors.
The sum of these divisors (counting 81450168) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110101101010010111000
3
Ternary
12200021002121220
4
Quaternary
10312231102320
5
Quinary
131322401133
6
Senary
12025432040
8
Octal
466552270
10
Decimal
81450168
12
Duodecimal
2333b620
16
Hexadecimal
4dad4b8
20
Vigesimal
1591588
36
Base36
1chrco
md5
d86be52a9327f307f322b836cdf74930
sha1
eaf78d890c183a85e59a0accd03eae96385449fc
sha256
7caf6f5cef7ef49799603a1fd8b8c6f8a1b5d644eac9d78387e55354842621a3
sha512
0706c9754d05e2315bb795166b638903cc910289c51434ace22ff8e2d44a0bb939bbc7fe453079a50287030554e9f108cb763efbab4a18f62fe9997522fda4da
ripemd-160
7d043f55bcbca463ad66e6a91d70a67e3420e934
Diameter
162900336
Circumference
511766498.84491
Area
2.0841733653845E+16
Volume
2.2634169433559E+24
Surface area
8.3366934615379E+16
Circumference
511766498.84491
Perimeter
325800672
Area
6634129867228224
Diagonal
115187932.24317
Surface area
39804779203369344
Volume
5.4035099221956E+23
Space diagonal
141075829.26102
Perimeter
244350504
Area
2.8726624985124E+15
Altitude
70537914.63051
Surface area
2.8726624985124E+15
Volume
6.3680975136555E+22
Height
38395977.414389