81282108 is an even 8-digits composite number following 81282107
and preceding 81282109 . In scientific notation, it is written as 8.1282108 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors.
There are 27094032 positive integers (up to 81282108) that are relatively prime to 81282108.
81282108 has 12 divisors, whose sum is 189658280
The reverse of 81282108 is 80128218
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million two hundred eighty-two thousand one hundred eight
Scientific notation
8.1282108 × 10^7
Engineering notation
8.1282108 × 10^6
Prime Factorization
2 × 2 × 3 × 6773509
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40641054
Product of the distinct prime numbers
The prime factorization of 81282108 is 2 × 2 × 3 × 6773509.
Since it has a total of 4 prime factors.
1 , 8 , 100 , 8 , 270 , 886 , 3747 , 9635 , 92216 , 25075 , 797976 , 593270 , 8822401 , 3187559 , 13643329 , 74294941 , 937990844 , 424467262 , 7898864649 , 4962063604
n×2
162564216
n×3
243846324
n×4
325128432
n×5
406410540
n÷2
40641054
n÷3
27094036
n÷3
20320527
n÷5
16256421.6
n2
6606781080923664
n3
5.3701309335199E+23
n4
4.3649556251251E+31
n5
3.5479279453662E+39
2 √n
9015.6590441298
3 √n
433.17659788543
4 √n
94.950824346763
5 √n
38.194338403635
1 , 2 , 3 , 4 , 6 , 12 , 6773509 , 13547018 , 20320527 , 27094036 , 40641054 , 81282108
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81282107
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81282108 can be divided by 12 positive divisors.
The sum of these divisors (counting 81282108) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110110000100010000111100
3
Ternary
12122221120002110
4
Quaternary
10312010100330
5
Quinary
131302011413
6
Senary
12022054020
8
Octal
466042074
10
Decimal
81282108
12
Duodecimal
2327a310
16
Hexadecimal
4d8443c
20
Vigesimal
1580558
36
Base36
1ce5oc
md5
21ed251e87eac36fd614adcba6d227ff
sha1
d26d800f0bb785af6290e9d54d84d011735b89d4
sha256
dc8fe62a585c10c2c256e3af7aba1b5c77d4865f07bf7fbfee0451593acc0715
sha512
45057628d1e1a367420134c77f762a9a13412f223ae115f901ded410efc8b9202f4d31c7a875281af35d56ac399039daf8002733137573944eb37c076103913a
ripemd-160
89b66dca2b39b17a5862710c7949d93574adec59
Diameter
162564216
Circumference
510710546.72218
Area
2.0755814907706E+16
Volume
2.2494351852749E+24
Surface area
8.3023259630823E+16
Circumference
510710546.72218
Perimeter
325128432
Area
6606781080923664
Diagonal
114950259.51187
Surface area
39640686485541984
Volume
5.3701309335199E+23
Space diagonal
140784740.8023
Perimeter
243846324
Area
2.8608201266612E+15
Altitude
70392370.40115
Surface area
2.8608201266612E+15
Volume
6.3287599982527E+22
Height
38316753.170625