81196021 is an odd 8-digits composite number following 81196020
and preceding 81196022 . In scientific notation, it is written as 8.1196021 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 80392000 positive integers (up to 81196021) that are relatively prime to 81196021.
81196021 has 4 divisors, whose sum is 82000044
The reverse of 81196021 is 12069118
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million one hundred ninety-six thousand twenty-one
Scientific notation
8.1196021 × 10^7
Engineering notation
8.1196021 × 10^6
Prime Factorization
101 × 803921
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81196021
Product of the distinct prime numbers
The prime factorization of 81196021 is 101 × 803921.
Since it has a total of 2 prime factors.
8 , 4 , 13 , 95 , 777 , 763 , 8866 , 679 , 42032 , 34003 , 752272 , 779730 , 7768570 , 6771724 , 23966160 , 10212184 , 554665851 , 286083183 , 5736768998 , 1206896724
n×2
162392042
n×3
243588063
n×4
324784084
n×5
405980105
n÷2
40598010.5
n÷3
27065340.333333
n÷3
20299005.25
n÷5
16239204.2
n2
6592793826232441
n3
5.3530862596344E+23
n4
4.3464930435209E+31
n5
3.5291794043807E+39
2 √n
9010.8834749984
3 √n
433.02361609749
4 √n
94.925673423992
5 √n
38.186244544017
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81196020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81196021 can be divided by 4 positive divisors.
The sum of these divisors (counting 81196021) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101101111001111110101
3
Ternary
12122210012000001
4
Quaternary
10311233033311
5
Quinary
131241233041
6
Senary
12020151301
8
Octal
465571765
10
Decimal
81196021
12
Duodecimal
23238531
16
Hexadecimal
4d6f3f5
20
Vigesimal
1579a11
36
Base36
1ccb91
md5
7936d3132bf61f0d456d23c79b224964
sha1
9195ae794e27b79816453165f67ec36c043c2647
sha256
c6ac6d033b827ee225c52a7396b88274bcd26f16fcc4ce3ac5328531608e95e3
sha512
c6149acdcbd5f0d57298ea6e1443692adf9cad69823d06c1d1842d3c8b56d0f5c2cb40f4f789dc229be5a103dd8d526733165812b609711232d1990b519d4cf5
ripemd-160
1e5606c8c00439e9bdf4ab033311d8e9622ef98c
Diameter
162392042
Circumference
510169646.14865
Area
2.0711872651124E+16
Volume
2.2422955289733E+24
Surface area
8.2847490604496E+16
Circumference
510169646.14865
Perimeter
324784084
Area
6592793826232441
Diagonal
114828514.10893
Surface area
39556762957394646
Volume
5.3530862596344E+23
Space diagonal
140635633.74443
Perimeter
243588063
Area
2.8547634677153E+15
Altitude
70317816.872215
Surface area
2.8547634677153E+15
Volume
6.30867265744E+22
Height
38276171.369644