81304927 is an odd 8-digits composite number following 81304926
and preceding 81304928 . In scientific notation, it is written as 8.1304927 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 72094400 positive integers (up to 81304927) that are relatively prime to 81304927.
81304927 has 12 divisors, whose sum is 90933048
The reverse of 81304927 is 72940318
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million three hundred four thousand nine hundred twenty-seven
Scientific notation
8.1304927 × 10^7
Engineering notation
8.1304927 × 10^6
Prime Factorization
11 × 41 × 41 × 4397
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1983047
Product of the distinct prime numbers
The prime factorization of 81304927 is 11 × 41 × 41 × 4397.
Since it has a total of 4 prime factors.
8 , 1 , 17 , 5 , 12 , 15 , 2561 , 9067 , 48261 , 99790 , 781137 , 309183 , 2534746 , 9239965 , 5047630 , 2833910 , 855138563 , 573190473 , 7703051691 , 2376280102
n×2
162609854
n×3
243914781
n×4
325219708
n×5
406524635
n÷2
40652463.5
n÷3
27101642.333333
n÷3
20326231.75
n÷5
16260985.4
n2
6610491154475329
n3
5.3746550074876E+23
n4
4.3698593303397E+31
n5
3.5529109385353E+39
2 √n
9016.9244756735
3 √n
433.21713051175
4 √n
94.957487728317
5 √n
38.196482685505
1 , 11 , 41 , 451 , 1681 , 4397 , 18491 , 48367 , 180277 , 1983047 , 7391357 , 81304927
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81304926
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81304927 can be divided by 12 positive divisors.
The sum of these divisors (counting 81304927) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110110001001110101011111
3
Ternary
12122222201101121
4
Quaternary
10312021311133
5
Quinary
131303224202
6
Senary
12022351411
8
Octal
466116537
10
Decimal
81304927
12
Duodecimal
2328b567
16
Hexadecimal
4d89d5f
20
Vigesimal
1583267
36
Base36
1cena7
md5
c5380e2ababfb6bda1e9397696c3a04b
sha1
630821874e25d935462d0b1d817c39fd0bd0fe5f
sha256
4f0a73ecfb0e92b8443703c16ab34eb3245bfc28f815981116525d1e03f73155
sha512
283b3e0c262883f7dc806e19f399cff309aa4596b23b2b6ababe090c5065916a89a234e8ab03958ea181cf1d02e95365f5b1aefab31d0a465bdea9c69dc05aaa
ripemd-160
6f7c5269219f2c21a9fae594ef735d28f64144bd
Diameter
162609854
Circumference
510853922.72771
Area
2.076747044752E+16
Volume
2.251330224947E+24
Surface area
8.306988179008E+16
Circumference
510853922.72771
Perimeter
325219708
Area
6610491154475329
Diagonal
114982530.45115
Surface area
39662946926851974
Volume
5.3746550074876E+23
Space diagonal
140824264.46968
Perimeter
243914781
Area
2.862426635634E+15
Altitude
70412132.234839
Surface area
2.862426635634E+15
Volume
6.3340916705546E+22
Height
38327510.150385