81103612 is an even 8-digits composite number following 81103611
and preceding 81103613 . In scientific notation, it is written as 8.1103612 × 10^7.
The sum of its digits is 22. It has a total of 5 prime factors and 24 positive divisors.
There are 38294256 positive integers (up to 81103612) that are relatively prime to 81103612.
81103612 has 24 divisors, whose sum is 149990400
The reverse of 81103612 is 21630118
Previous prime number is 11159
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million one hundred three thousand six hundred twelve
Scientific notation
8.1103612 × 10^7
Engineering notation
8.1103612 × 10^6
Prime Factorization
2 × 2 × 23 × 11159 × 79
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40551806
Product of the distinct prime numbers
The prime factorization of 81103612 is 2 × 2 × 23 × 11159 × 79.
Since it has a total of 5 prime factors.
8 , 5 , 83 , 92 , 726 , 478 , 3507 , 9295 , 58592 , 86142 , 721028 , 207783 , 9379011 , 2369242 , 70932321 , 754268 , 351265958 , 494204082 , 9794048801 , 9312103921
n×2
162207224
n×3
243310836
n×4
324414448
n×5
405518060
n÷2
40551806
n÷3
27034537.333333
n÷3
20275903
n÷5
16220722.4
n2
6577795879446544
n3
5.3348300482183E+23
n4
4.3267398631664E+31
n5
3.5091423108718E+39
2 √n
9005.7543826156
3 √n
432.85927935256
4 √n
94.898653218134
5 √n
38.177548649434
1 , 2 , 4 , 23 , 46 , 79 , 92 , 158 , 316 , 1817 , 3634 , 7268 , 11159 , 22318 , 44636 , 256657 , 513314 , 881561 , 1026628 , 1763122 , 3526244 , 20275903 , 40551806 , 81103612
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81103611
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81103612 can be divided by 24 positive divisors.
The sum of these divisors (counting 81103612) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110101011000101011111100
3
Ternary
12122121111020111
4
Quaternary
10311120223330
5
Quinary
131230303422
6
Senary
12014155404
8
Octal
465305374
10
Decimal
81103612
12
Duodecimal
231b2b64
16
Hexadecimal
4d58afc
20
Vigesimal
156hj0c
36
Base36
1caby4
md5
89c9320cc5f27a14377fc02e0175270d
sha1
67e82f205c1052a83946becac21ac94f07bd15df
sha256
24d43a9fb46a9544b94bc56366e1adacc99eb9161a3f48a4f0cd8688f8d314fc
sha512
ce3faca5c462a11f21930d57a9f660d8f0881fb57727b31e183117ae5a82be7b9f099c0e27cf4fd47cfa594153b8902c9a1b21e0e4bcb8adedb963f1d7bee07b
ripemd-160
3dfe0c5cb1bb5fab7f9b6c66e3d3092210b5c415
Diameter
162207224
Circumference
509589023.27759
Area
2.0664755211682E+16
Volume
2.2346483850177E+24
Surface area
8.265902084673E+16
Circumference
509589023.27759
Perimeter
324414448
Area
6577795879446544
Diagonal
114697828.04785
Surface area
39466775276679264
Volume
5.3348300482183E+23
Space diagonal
140475576.66135
Perimeter
243310836
Area
2.8482691662547E+15
Altitude
70237788.330676
Surface area
2.8482691662547E+15
Volume
6.2871575059549E+22
Height
38232609.349282