81593542 is an even 8-digits composite number following 81593541
and preceding 81593543 . In scientific notation, it is written as 8.1593542 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 40796770 positive integers (up to 81593542) that are relatively prime to 81593542.
81593542 has 4 divisors, whose sum is 122390316
The reverse of 81593542 is 24539518
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million five hundred ninety-three thousand five hundred forty-two
Scientific notation
8.1593542 × 10^7
Engineering notation
8.1593542 × 10^6
Prime Factorization
2 × 40796771
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81593542
Product of the distinct prime numbers
The prime factorization of 81593542 is 2 × 40796771.
Since it has a total of 2 prime factors.
5 , 4 , 90 , 88 , 294 , 742 , 8840 , 1633 , 15229 , 94114 , 640139 , 480718 , 2281375 , 1398480 , 42876609 , 2770972 , 87200768 , 753615954 , 5697209503 , 8929096800
n×2
163187084
n×3
244780626
n×4
326374168
n×5
407967710
n÷2
40796771
n÷3
27197847.333333
n÷3
20398385.5
n÷5
16318708.4
n2
6657506096105764
n3
5.4320950326786E+23
n4
4.4322387419685E+31
n5
3.6164205794684E+39
2 √n
9032.914369128
3 √n
433.72913435991
4 √n
95.041645446236
5 √n
38.223562121577
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
-81593541
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 81593542 can be divided by 4 positive divisors.
The sum of these divisors (counting 81593542) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111010000010011000110
3
Ternary
12200112101022001
4
Quaternary
10313100103012
5
Quinary
131341443132
6
Senary
12032455514
8
Octal
467202306
10
Decimal
81593542
12
Duodecimal
233aa59a
16
Hexadecimal
4dd04c6
20
Vigesimal
159j3h2
36
Base36
1cktza
md5
f9b05831d7fd63489fb0fc2483f4f3e3
sha1
3e8d8592f2026a83cd25301107d5853c71894f94
sha256
ea715cde59b5ab4518195db8baafe62cac42effabd67e86f716f6725bbc59932
sha512
749274dbf56fddb352b44b6fa5bfcf01636581d7f7ab4de0a96ad1d97ff7d53d616c50497e490076a7e7b76ec95d6080789c92695e9b9c2ccfe32659d14958e8
ripemd-160
6e55435cbe956625d31e804beec88ded922af412
Diameter
163187084
Circumference
512667344.25514
Area
2.0915172242755E+16
Volume
2.2753906464353E+24
Surface area
8.3660688971021E+16
Circumference
512667344.25514
Perimeter
326374168
Area
6657506096105764
Diagonal
115390693.69846
Surface area
39945036576634584
Volume
5.4320950326786E+23
Space diagonal
141324160.31351
Perimeter
244780626
Area
2.8827847025387E+15
Altitude
70662080.156753
Surface area
2.8827847025387E+15
Volume
6.401785389428E+22
Height
38463564.566153