81273746 is an even 8-digits composite number following 81273745
and preceding 81273747 . In scientific notation, it is written as 8.1273746 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 40593280 positive integers (up to 81273746) that are relatively prime to 81273746.
81273746 has 8 divisors, whose sum is 122041404
The reverse of 81273746 is 64737218
Previous prime number is 953
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million two hundred seventy-three thousand seven hundred forty-six
Scientific notation
8.1273746 × 10^7
Engineering notation
8.1273746 × 10^6
Prime Factorization
2 × 953 × 42641
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81273746
Product of the distinct prime numbers
The prime factorization of 81273746 is 2 × 953 × 42641.
Since it has a total of 3 prime factors.
7 , 7 , 72 , 89 , 536 , 434 , 7205 , 2930 , 35201 , 32564 , 865790 , 513353 , 1673719 , 8186446 , 37464262 , 37879415 , 697082715 , 674717283 , 8097979181 , 1394150220
n×2
162547492
n×3
243821238
n×4
325094984
n×5
406368730
n÷2
40636873
n÷3
27091248.666667
n÷3
20318436.5
n÷5
16254749.2
n2
6605421788872516
n3
5.3684737269169E+23
n4
4.3631597008912E+31
n5
3.5461033328767E+39
2 √n
9015.1952835199
3 √n
433.16174284528
4 √n
94.948382205912
5 √n
38.193552513088
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81273745
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81273746 can be divided by 8 positive divisors.
The sum of these divisors (counting 81273746) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110000010001110010010
3
Ternary
12122221010121202
4
Quaternary
10312002032102
5
Quinary
131301224441
6
Senary
12021551202
8
Octal
466021622
10
Decimal
81273746
12
Duodecimal
23275502
16
Hexadecimal
4d82392
20
Vigesimal
157j476
36
Base36
1cdz82
md5
29790cb6c0ded2bf4b3fcc0a4515940c
sha1
781e1722619cc4d68677d30ec61b1eb46561c117
sha256
6baeb2f521b8f4c519193480a8a54385919f6e8f89a2b451cded56c83a62063b
sha512
71e47fd78bb091f7760ec07300e36d6238e7a221989362ccb48573a6106cbb04aa46161d12946096798d47eebb04d3a7c8da14dc237ef140ae3e9a09d5c196f3
ripemd-160
e558eb3112ef1d8ca2aef5083d8a84e8a5ff8e84
Diameter
162547492
Circumference
510658006.72665
Area
2.0751544565784E+16
Volume
2.2487410161963E+24
Surface area
8.3006178263135E+16
Circumference
510658006.72665
Perimeter
325094984
Area
6605421788872516
Diagonal
114938433.85807
Surface area
39632530733235096
Volume
5.3684737269169E+23
Space diagonal
140770257.39345
Perimeter
243821238
Area
2.8602315359374E+15
Altitude
70385128.696724
Surface area
2.8602315359374E+15
Volume
6.3268069615413E+22
Height
38312811.286022