81195428 is an even 8-digits composite number following 81195427
and preceding 81195429 . In scientific notation, it is written as 8.1195428 × 10^7.
The sum of its digits is 38. It has a total of 5 prime factors and 24 positive divisors.
There are 38746400 positive integers (up to 81195428) that are relatively prime to 81195428.
81195428 has 24 divisors, whose sum is 148599360
The reverse of 81195428 is 82459118
Previous prime number is 701
Is Prime? no Number parity even Number length 8 Sum of Digits 38 Digital Root 2
Name
eighty-one million one hundred ninety-five thousand four hundred twenty-eight
Scientific notation
8.1195428 × 10^7
Engineering notation
8.1195428 × 10^6
Prime Factorization
2 × 2 × 23 × 701 × 1259
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
40597714 Product of the distinct prime numbers
The prime factorization of 81195428 is 2 × 2 × 23 × 701 × 1259.
Since it has a total of 5 prime factors.
1 , 2 , 78 , 49 , 324 , 994 , 5432 , 9642 , 54612 , 32852 , 123136 , 583688 , 2767632 , 4027422 , 97489917 , 55447001 , 421323087 , 325141900 , 6188223600 , 5317955565
n×2
162390856
n×3
243586284
n×4
324781712
n×5
405977140
n÷2
40597714
n÷3
27065142.666667
n÷3
20298857
n÷5
16239085.6
n2
6592697528103184
n3
5.3529689746888E+23
n4
4.3463660697058E+31
n5
3.5290505327444E+39
2 √n9010.8505702847
3 √n433.02256192585
4 √n94.925500105529
5 √n38.186188766631
1 , 2 , 4 , 23 , 46 , 92 , 701 , 1259 , 1402 , 2518 , 2804 , 5036 , 16123 , 28957 , 32246 , 57914 , 64492 , 115828 , 882559 , 1765118 , 3530236 , 20298857 , 40597714 , 81195428
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81195427 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81195428 can be divided by 24 positive divisors.
The sum of these divisors (counting 81195428) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110101101111000110100100
3
Ternary
12122210011012002
4
Quaternary
10311233012210
5
Quinary
131241223203
6
Senary
12020144432
8
Octal
465570644
10
Decimal
81195428
12
Duodecimal
23238118
16
Hexadecimal
4d6f1a4
20
Vigesimal
15798b8
36
Base36
1ccask
md5
f19c96241dfad58a34c28ca8a00e3406
sha1
ce7ddd102e52713471196ae6e105c6cee26cd2da
sha256
05022866884b44078b10a85419ad2068d4042242c09ab37d0a44e6aaeb6c1501
sha512
ad9bbb56defa36ee1d57fd61f3618182a6d36d313f224b3ed75c62046dafb1a7c16b5dbe6f508e7f63170564f730299e74df0f7ea0f4aec630ff6a9a99c299c9
ripemd-160
fef60e60b6f6b716cb3bf81bb685ef852c4c7e7f
Diameter
162390856
Circumference
510165920.21976
Area
2.0711570121629E+16
Volume
2.2422464007702E+24
Surface area
8.2846280486514E+16
Circumference
510165920.21976
Perimeter
324781712
Area
6592697528103184
Diagonal
114827675.48029
Surface area
39556185168619104
Volume
5.3529689746888E+23
Space diagonal
140634606.6383
Perimeter
243586284
Area
2.8547217694021E+15
Altitude
70317303.31915
Surface area
2.8547217694021E+15
Volume
6.3085344358061E+22
Height
38275891.826763