81126908 is an even 8-digits composite number following 81126907
and preceding 81126909 . In scientific notation, it is written as 8.1126908 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 6 positive divisors.
There are 40563452 positive integers (up to 81126908) that are relatively prime to 81126908.
81126908 has 6 divisors, whose sum is 141972096
The reverse of 81126908 is 80962118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million one hundred twenty-six thousand nine hundred eight
Scientific notation
8.1126908 × 10^7
Engineering notation
8.1126908 × 10^6
Prime Factorization
2 × 2 × 20281727
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40563454
Product of the distinct prime numbers
The prime factorization of 81126908 is 2 × 2 × 20281727.
Since it has a total of 3 prime factors.
3 , 1 , 92 , 60 , 768 , 492 , 5936 , 8488 , 50458 , 54917 , 296277 , 227369 , 6215799 , 5418645 , 40442873 , 53266081 , 484483068 , 338635914 , 6947720363 , 7121112814
n×2
162253816
n×3
243380724
n×4
324507632
n×5
405634540
n÷2
40563454
n÷3
27042302.666667
n÷3
20281727
n÷5
16225381.6
n2
6581575201640464
n3
5.3394284587857E+23
n4
4.3317132134849E+31
n5
3.5141849935277E+39
2 √n
9007.0476850076
3 √n
432.9007198597
4 √n
94.905467097568
5 √n
38.179741602333
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81126907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81126908 can be divided by 6 positive divisors.
The sum of these divisors (counting 81126908) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110101011110010111111100
3
Ternary
12122122200012022
4
Quaternary
10311132113330
5
Quinary
131232030113
6
Senary
12014455312
8
Octal
465362774
10
Decimal
81126908
12
Duodecimal
23204538
16
Hexadecimal
4d5e5fc
20
Vigesimal
1570h58
36
Base36
1catx8
md5
dc6aea2cfacfb178898295ad022fefda
sha1
5f017caac0f7579eeb2027118d8c8371c776fcd9
sha256
e3f4d54da76a822bc44f94ab8ca9799022f80820823438ae65a4ba0b5ff4b76e
sha512
2738c10ff171c959312eeec3492480922662da56aa0899dc0e6896578787f5fd9f00dd3b11543d672671d4a7c40883166ad4785db5496951e39f116989fe6d79
ripemd-160
6dbd7c8421e30f3895de467f39ab4d2d448d37d2
Diameter
162253816
Circumference
509735396.36251
Area
2.0676628302522E+16
Volume
2.2365745627319E+24
Surface area
8.270651321009E+16
Circumference
509735396.36251
Perimeter
324507632
Area
6581575201640464
Diagonal
114730773.56699
Surface area
39489451209842784
Volume
5.3394284587857E+23
Space diagonal
140515926.51697
Perimeter
243380724
Area
2.8499056607692E+15
Altitude
70257963.258483
Surface area
2.8499056607692E+15
Volume
6.2925767847796E+22
Height
38243591.188998