81124563 is an odd 8-digits composite number following 81124562
and preceding 81124564 . In scientific notation, it is written as 8.1124563 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors.
There are 49922496 positive integers (up to 81124563) that are relatively prime to 81124563.
81124563 has 12 divisors, whose sum is 117127320
The reverse of 81124563 is 36542118
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million one hundred twenty-four thousand five hundred sixty-three
Scientific notation
8.1124563 × 10^7
Engineering notation
8.1124563 × 10^6
Prime Factorization
3 × 13 × 13 × 160009
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6240351
Product of the distinct prime numbers
The prime factorization of 81124563 is 3 × 13 × 13 × 160009.
Since it has a total of 4 prime factors.
7 , 4 , 54 , 23 , 832 , 325 , 4154 , 4635 , 48257 , 18869 , 215716 , 190829 , 7136268 , 8204498 , 56259875 , 89064007 , 609056104 , 158710903 , 358539010 , 7287519625
n×2
162249126
n×3
243373689
n×4
324498252
n×5
405622815
n÷2
40562281.5
n÷3
27041521
n÷3
20281140.75
n÷5
16224912.6
n2
6581194721940969
n3
5.3389654583537E+23
n4
4.3312123968104E+31
n5
3.5136771295142E+39
2 √n
9006.9175082267
3 √n
432.89654877354
4 √n
94.904781271687
5 √n
38.179520880179
1 , 3 , 13 , 39 , 169 , 507 , 160009 , 480027 , 2080117 , 6240351 , 27041521 , 81124563
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
-81124562
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 81124563 can be divided by 12 positive divisors.
The sum of these divisors (counting 81124563) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110101011101110011010011
3
Ternary
12122122112222110
4
Quaternary
10311131303103
5
Quinary
131231441223
6
Senary
12014440403
8
Octal
465356323
10
Decimal
81124563
12
Duodecimal
23203103
16
Hexadecimal
4d5dcd3
20
Vigesimal
1570b83
36
Base36
1cas43
md5
cea5bb6ca538a44dfbd7527de7c7972c
sha1
cf7b5d606bf373374c143fb25c362c2395169a98
sha256
b6285d3db7714284aa51677f3ae8f79b397dccc3747c3a1b275e8dfcfcadf4b2
sha512
99c39dcd9e552c92e91774ceeeeb16ac3a39884c940eb2a32ddaf1d7838c039241ac18152c02199736537ccdf600368f10e92f6214b13ddf545ade9f41d1b9f3
ripemd-160
07d0ff1ffd6b9e49931eb3afdd97e39dfa3f1610
Diameter
162249126
Circumference
509720662.29296
Area
2.0675432990294E+16
Volume
2.2363806215645E+24
Surface area
8.2701731961175E+16
Circumference
509720662.29296
Perimeter
324498252
Area
6581194721940969
Diagonal
114727457.23619
Surface area
39487168331645814
Volume
5.3389654583537E+23
Space diagonal
140511864.85782
Perimeter
243373689
Area
2.8497409082265E+15
Altitude
70255932.428911
Surface area
2.8497409082265E+15
Volume
6.2920311335377E+22
Height
38242485.745397