81273722 is an even 8-digits composite number following 81273721
and preceding 81273723 . In scientific notation, it is written as 8.1273722 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 40636860 positive integers (up to 81273722) that are relatively prime to 81273722.
81273722 has 4 divisors, whose sum is 121910586
The reverse of 81273722 is 22737218
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million two hundred seventy-three thousand seven hundred twenty-two
Scientific notation
8.1273722 × 10^7
Engineering notation
8.1273722 × 10^6
Prime Factorization
2 × 40636861
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81273722
Product of the distinct prime numbers
The prime factorization of 81273722 is 2 × 40636861.
Since it has a total of 2 prime factors.
5 , 10 , 40 , 100 , 903 , 194 , 9891 , 8756 , 54596 , 56026 , 765446 , 135175 , 6735113 , 7752561 , 6545341 , 53393550 , 738057843 , 17927947 , 2780729699 , 2250364901
n×2
162547444
n×3
243821166
n×4
325094888
n×5
406368610
n÷2
40636861
n÷3
27091240.666667
n÷3
20318430.5
n÷5
16254744.4
n2
6605417887733284
n3
5.3684689710146E+23
n4
4.3631545471587E+31
n5
3.5460980970881E+39
2 √n
9015.1939524339
3 √n
433.16170020797
4 √n
94.948375196387
5 √n
38.19355025739
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
-81273721
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 81273722 can be divided by 4 positive divisors.
The sum of these divisors (counting 81273722) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110000010001101111010
3
Ternary
12122221010120212
4
Quaternary
10312002031322
5
Quinary
131301224342
6
Senary
12021551122
8
Octal
466021572
10
Decimal
81273722
12
Duodecimal
232754a2
16
Hexadecimal
4d8237a
20
Vigesimal
157j462
36
Base36
1cdz7e
md5
ebd3aacb55c1a3563ffab19cfccb5e19
sha1
1057ec10e8d235c38791ce7cebf35e56b5c42b21
sha256
170eb421020acea74cce1250e52d4cfc2df38d23c21bd44baaf837b0e0572151
sha512
c83146e36b62a8ab8f6a398fd7c5bbf660e4b88329012410f29cc6b1e912b5f878e8536219d8958fc04a3a39eb93f0fbb18bfe250727ef7532bedb90ea051bd0
ripemd-160
b61bf37c0af17e8ceb4b7f1d2b0d62262b633136
Diameter
162547444
Circumference
510657855.9302
Area
2.0751532309993E+16
Volume
2.2487390240486E+24
Surface area
8.3006129239974E+16
Circumference
510657855.9302
Perimeter
325094888
Area
6605417887733284
Diagonal
114938399.91694
Surface area
39632507326399704
Volume
5.3684689710146E+23
Space diagonal
140770215.82423
Perimeter
243821166
Area
2.8602298466946E+15
Altitude
70385107.912114
Surface area
2.8602298466946E+15
Volume
6.3268013566567E+22
Height
38312799.972314