81301910 is an even 8-digits composite number following 81301909
and preceding 81301911 . In scientific notation, it is written as 8.1301910 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 32520760 positive integers (up to 81301910) that are relatively prime to 81301910.
81301910 has 8 divisors, whose sum is 146343456
The reverse of 81301910 is 01910318
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighty-one million three hundred one thousand nine hundred ten
Scientific notation
8.1301910 × 10^7
Engineering notation
8.1301910 × 10^6
Prime Factorization
2 × 5 × 8130191
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81301910
Product of the distinct prime numbers
The prime factorization of 81301910 is 2 × 5 × 8130191.
Since it has a total of 3 prime factors.
7 , 1 , 48 , 48 , 378 , 693 , 7995 , 4252 , 46410 , 12247 , 988598 , 729835 , 9659624 , 1100400 , 69386954 , 29868548 , 30780543 , 389729710 , 5894978084 , 7256920638
n×2
162603820
n×3
243905730
n×4
325207640
n×5
406509550
n÷2
40650955
n÷3
27100636.666667
n÷3
20325477.5
n÷5
16260382
n2
6610000569648100
n3
5.3740567141348E+23
n4
4.3692107530748E+31
n5
3.5522517941752E+39
2 √n
9016.757177611
3 √n
433.21177195068
4 √n
94.956606813908
5 √n
38.196199208222
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
-81301909
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 81301910 can be divided by 8 positive divisors.
The sum of these divisors (counting 81301910) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110001001000110010110
3
Ternary
12122222120020212
4
Quaternary
10312021012112
5
Quinary
131303130120
6
Senary
12022325422
8
Octal
466110626
10
Decimal
81301910
12
Duodecimal
23289872
16
Hexadecimal
4d89196
20
Vigesimal
1582efa
36
Base36
1cekye
md5
87c5b572db989c14dd4fa14d3d49e8bb
sha1
fd7d94deeb80f423d83d1530915b18adec59a316
sha256
6b9530c951fc84ff885e0f4aab4713332d63902697f5ac8729546bd3b392afdf
sha512
ccee39403b8d3123dc98b6f87b8260e2ed70727b5149ef8bdef74708222d97f48baef510ed8f28b0f1fde04e7f0cd01bb4243105eeaef54a0eae0658452dc159
ripemd-160
1143001e13fc80c5a8d0f96b8835c96f2e59690f
Diameter
162603820
Circumference
510834966.35764
Area
2.0765929229831E+16
Volume
2.2510796124134E+24
Surface area
8.3063716919323E+16
Circumference
510834966.35764
Perimeter
325207640
Area
6610000569648100
Diagonal
114978263.76884
Surface area
39660003417888600
Volume
5.3740567141348E+23
Space diagonal
140819038.87239
Perimeter
243905730
Area
2.8622142061724E+15
Altitude
70409519.436196
Surface area
2.8622142061724E+15
Volume
6.3333865750763E+22
Height
38326087.922946