81162008 is an even 8-digits composite number following 81162007
and preceding 81162009 . In scientific notation, it is written as 8.1162008 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 8 positive divisors.
There are 40581000 positive integers (up to 81162008) that are relatively prime to 81162008.
81162008 has 8 divisors, whose sum is 152178780
The reverse of 81162008 is 80026118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million one hundred sixty-two thousand eight
Scientific notation
8.1162008 × 10^7
Engineering notation
8.1162008 × 10^6
Prime Factorization
2 × 2 × 2 × 10145251
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20290502
Product of the distinct prime numbers
The prime factorization of 81162008 is 2 × 2 × 2 × 10145251.
Since it has a total of 4 prime factors.
6 , 2 , 13 , 51 , 816 , 684 , 5246 , 7927 , 54042 , 18769 , 330133 , 195868 , 8780326 , 608296 , 96846028 , 45328283 , 759901031 , 869283097 , 296094604 , 4764573232
n×2
162324016
n×3
243486024
n×4
324648032
n×5
405810040
n÷2
40581004
n÷3
27054002.666667
n÷3
20290502
n÷5
16232401.6
n2
6587271542592064
n3
5.3463618563803E+23
n4
4.3392146375843E+31
n5
3.5217937312934E+39
2 √n
9008.995948495
3 √n
432.9631431452
4 √n
94.915730774698
5 √n
38.183044765491
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
-81162007
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 81162008 can be divided by 8 positive divisors.
The sum of these divisors (counting 81162008) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101100110111100011000
3
Ternary
12122201110100022
4
Quaternary
10311212330120
5
Quinary
131234141013
6
Senary
12015330012
8
Octal
465467430
10
Decimal
81162008
12
Duodecimal
23220908
16
Hexadecimal
4d66f18
20
Vigesimal
1575508
36
Base36
1cbl08
md5
38ed6f17989bacaf005eefae805a0325
sha1
a0aeb28a679740ef2c880319fbc76076bd31f82f
sha256
701ecd96c490f542875580c88d0c7878d8a4577cd88c530e58706a7f914c8f60
sha512
86ab5c435da805cc83c095a54d8052bc4324cd578318cd73eee3c382b0ea8c67360ad836e5bc4eb405426d8d8da522ae88078592d8cecb21b0d6eab0f66c29a3
ripemd-160
4ff4d5327c4909e43c7de45087eecce8825d2e6f
Diameter
162324016
Circumference
509955936.16679
Area
2.0694523885408E+16
Volume
2.2394788175249E+24
Surface area
8.2778095541633E+16
Circumference
509955936.16679
Perimeter
324648032
Area
6587271542592064
Diagonal
114780412.46303
Surface area
39523629255552384
Volume
5.3463618563803E+23
Space diagonal
140576721.50031
Perimeter
243486024
Area
2.8523722487555E+15
Altitude
70288360.750156
Surface area
2.8523722487555E+15
Volume
6.300747872206E+22
Height
38260137.487678