81124534 is an even 8-digits composite number following 81124533
and preceding 81124535 . In scientific notation, it is written as 8.1124534 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 40562266 positive integers (up to 81124534) that are relatively prime to 81124534.
81124534 has 4 divisors, whose sum is 121686804
The reverse of 81124534 is 43542118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million one hundred twenty-four thousand five hundred thirty-four
Scientific notation
8.1124534 × 10^7
Engineering notation
8.1124534 × 10^6
Prime Factorization
2 × 40562267
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81124534
Product of the distinct prime numbers
The prime factorization of 81124534 is 2 × 40562267.
Since it has a total of 2 prime factors.
10 , 4 , 26 , 66 , 899 , 84 , 5949 , 3893 , 82489 , 87363 , 266920 , 762326 , 614490 , 2305742 , 90474233 , 73948485 , 95042599 , 417623472 , 3083627260 , 6260035692
n×2
162249068
n×3
243373602
n×4
324498136
n×5
405622670
n÷2
40562267
n÷3
27041511.333333
n÷3
20281133.5
n÷5
16224906.8
n2
6581190016717156
n3
5.3389597327163E+23
n4
4.3312062036138E+31
n5
3.5136708492608E+39
2 √n
9006.9158983528
3 √n
432.89649719031
4 √n
94.904772790165
5 √n
38.179518150534
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81124533
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81124534 can be divided by 4 positive divisors.
The sum of these divisors (counting 81124534) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011101110010110110
3
Ternary
12122122112221101
4
Quaternary
10311131302312
5
Quinary
131231441114
6
Senary
12014440314
8
Octal
465356266
10
Decimal
81124534
12
Duodecimal
2320309a
16
Hexadecimal
4d5dcb6
20
Vigesimal
1570b6e
36
Base36
1cas3a
md5
ffdd9d872237e132e312b9dcbc95a8b4
sha1
095ef094eae009f96139458b77aca277c8a0d5cf
sha256
ded297ec47593c3132330ff60bc23314367476656fa1d8769172d8c53e8094df
sha512
712153e724abdeb5bb4f702d24ee0ec3e156ba31efde84565806d65a206b39e7546bf3c4f152177d5292805ef83839a0761e230097a89f3584e935bfee9258bc
ripemd-160
6b674871e5d7ceae7298af9dfa64d137cf2cabaf
Diameter
162249068
Circumference
509720480.08059
Area
2.0675418208397E+16
Volume
2.2363782232151E+24
Surface area
8.2701672833588E+16
Circumference
509720480.08059
Perimeter
324498136
Area
6581190016717156
Diagonal
114727416.224
Surface area
39487140100302936
Volume
5.3389597327163E+23
Space diagonal
140511814.62835
Perimeter
243373602
Area
2.8497388708048E+15
Altitude
70255907.314174
Surface area
2.8497388708048E+15
Volume
6.2920243858094E+22
Height
38242472.074666