81748468 is an even 8-digits composite number following 81748467
and preceding 81748469 . In scientific notation, it is written as 8.1748468 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 6 positive divisors.
There are 40874232 positive integers (up to 81748468) that are relatively prime to 81748468.
81748468 has 6 divisors, whose sum is 143059826
The reverse of 81748468 is 86484718
Previous prime number is 2
Is Prime? no Number parity even Number length 8 Sum of Digits 46 Digital Root 1
Name
eighty-one million seven hundred forty-eight thousand four hundred sixty-eight
Scientific notation
8.1748468 × 10^7
Engineering notation
8.1748468 × 10^6
Prime Factorization
2 × 2 × 20437117
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
40874234 Product of the distinct prime numbers
The prime factorization of 81748468 is 2 × 2 × 20437117.
Since it has a total of 3 prime factors.
5 , 1 , 28 , 62 , 550 , 164 , 1979 , 8909 , 59772 , 37692 , 216817 , 563643 , 3760002 , 3998288 , 69834954 , 24136124 , 812320996 , 551442792 , 5211471439 , 2084556240
n×2
163496936
n×3
245245404
n×4
326993872
n×5
408742340
n÷2
40874234
n÷3
27249489.333333
n÷3
20437117
n÷5
16349693.6
n2
6682812020347024
n3
5.4630964459535E+23
n4
4.4659976499295E+31
n5
3.6508846597333E+39
2 √n9041.4859398221
3 √n434.00347566005
4 √n95.086728515719
5 √n38.238066531913
6 divisors
τ Total Divisors
6 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81748467 Sum of the proper positive divisors of n
A Arithmetic Mean
0.16666666666667 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
6 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81748468 can be divided by 6 positive divisors.
The sum of these divisors (counting 81748468) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110111110110000111110100
3
Ternary
12200211020211001
4
Quaternary
10313312013310
5
Quinary
131411422333
6
Senary
12040053044
8
Octal
467660764
10
Decimal
81748468
12
Duodecimal
23464184
16
Hexadecimal
4df61f4
20
Vigesimal
15aib38
36
Base36
1co5is
md5
c7b8e43fb8e9c925a3cb3bd9f01e4cfa
sha1
4237dd776902a4367aae3fbdc59b48c4a210fa4a
sha256
90438c0bf3dbcc6e05dddde3db13c323c7b60ac4b8c5072726666bac6fc7fd48
sha512
04840fa80d972c0fde6c58e4713ab59197415af104dfc501e7932ba9e60f86dca5b030a2d6f8db3f198cd1e5c05ea664a0f104660f9542c038a830e602fff11a
ripemd-160
dd54f9da4dd40fba5aa55bd0ea44c5d5ff2faaba
Diameter
163496936
Circumference
513640773.02204
Area
2.0994673148444E+16
Volume
2.2883764880614E+24
Surface area
8.3978692593775E+16
Circumference
513640773.02204
Perimeter
326993872
Area
6682812020347024
Diagonal
115609792.14882
Surface area
40096872122082144
Volume
5.4630964459535E+23
Space diagonal
141592500.01692
Perimeter
245245404
Area
2.8937424891683E+15
Altitude
70796250.008459
Surface area
2.8937424891683E+15
Volume
6.4383209053498E+22
Height
38536597.382941