81490166 is an even 8-digits composite number following 81490165
and preceding 81490167 . In scientific notation, it is written as 8.1490166 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 40731120 positive integers (up to 81490166) that are relatively prime to 81490166.
81490166 has 8 divisors, whose sum is 122277144
The reverse of 81490166 is 66109418
Previous prime number is 4153
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million four hundred ninety thousand one hundred sixty-six
Scientific notation
8.1490166 × 10^7
Engineering notation
8.1490166 × 10^6
Prime Factorization
2 × 4153 × 9811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81490166
Product of the distinct prime numbers
The prime factorization of 81490166 is 2 × 4153 × 9811.
Since it has a total of 3 prime factors.
4 , 8 , 53 , 27 , 872 , 167 , 2419 , 7228 , 79249 , 6158 , 236714 , 955485 , 8636149 , 1264841 , 21405874 , 69927696 , 917028928 , 90923476 , 6008166304 , 5842565023
n×2
162980332
n×3
244470498
n×4
325960664
n×5
407450830
n÷2
40745083
n÷3
27163388.666667
n÷3
20372541.5
n÷5
16298033.2
n2
6640647154707556
n3
5.4114743898455E+23
n4
4.4098194633326E+31
n5
3.59356920097E+39
2 √n
9027.1903713171
3 √n
433.54588402367
4 √n
95.011527570696
5 √n
38.213871641435
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
-81490165
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 81490166 can be divided by 8 positive divisors.
The sum of these divisors (counting 81490166) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110110111000011110110
3
Ternary
12200100010111022
4
Quaternary
10312313003312
5
Quinary
131330141131
6
Senary
12030341142
8
Octal
466670366
10
Decimal
81490166
12
Duodecimal
2335a7b2
16
Hexadecimal
4db70f6
20
Vigesimal
1596586
36
Base36
1cim7q
md5
a80dfb7182886244e1d6bbf8a01d0679
sha1
d9f48773059ecbb0233dc611b446763087e7fd0a
sha256
b2ff57f2e641e63b1be52c89c6a5e29fe13c0423db4ab0ec1c6ae4bac8d2e6d5
sha512
2f119ff2cb6d4ceccee5dda5aaf8aa6a112c44c9cce99a293edd04cb98a951f2ce4b46bac3ed6478380e678430cc1e9a9fe440b83fc404e954b4f6048fc6dcec
ripemd-160
75c7a5c3ef22b56ea6f0e8faeeae9558fae73d6c
Diameter
162980332
Circumference
512017813.69083
Area
2.0862208316311E+16
Volume
2.2667530917637E+24
Surface area
8.3448833265245E+16
Circumference
512017813.69083
Perimeter
325960664
Area
6640647154707556
Diagonal
115244497.95723
Surface area
39843882928245336
Volume
5.4114743898455E+23
Space diagonal
141145107.82922
Perimeter
244470498
Area
2.8754845667728E+15
Altitude
70572553.914611
Surface area
2.8754845667728E+15
Volume
6.3774837287951E+22
Height
38414832.652412