21081317 is an odd 8-digits composite number following 21081316
and preceding 21081318 . In scientific notation, it is written as 2.1081317 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 12 positive divisors.
There are 19095912 positive integers (up to 21081317) that are relatively prime to 21081317.
21081317 has 12 divisors, whose sum is 23225760
The reverse of 21081317 is 71318012
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million eighty-one thousand three hundred seventeen
Scientific notation
2.1081317 × 10^7
Engineering notation
2.1081317 × 10^6
Prime Factorization
19 × 19 × 23 × 2539
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1109543
Product of the distinct prime numbers
The prime factorization of 21081317 is 19 × 19 × 23 × 2539.
Since it has a total of 4 prime factors.
1 , 8 , 96 , 72 , 32 , 56 , 6948 , 7136 , 95395 , 14860 , 583980 , 987732 , 7652586 , 9095693 , 44714686 , 15881032 , 239371337 , 640478357 , 1704819048 , 5085457236
n×2
42162634
n×3
63243951
n×4
84325268
n×5
105406585
n÷2
10540658.5
n÷3
7027105.6666667
n÷3
5270329.25
n÷5
4216263.4
n2
444421926454489
n3
9.3689995133378E+21
n4
1.9751084871352E+29
n5
4.1637888126687E+36
2 √n
4591.4395346122
3 √n
276.24806602387
4 √n
67.760161854974
5 √n
29.159464745495
1 , 19 , 23 , 361 , 437 , 2539 , 8303 , 48241 , 58397 , 916579 , 1109543 , 21081317
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
-21081316
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 21081317 can be divided by 12 positive divisors.
The sum of these divisors (counting 21081317) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000011010110011100101
3
Ternary
1110200001010112
4
Quaternary
1100122303211
5
Quinary
20344100232
6
Senary
2031502405
8
Octal
120326345
10
Decimal
21081317
12
Duodecimal
7087a05
16
Hexadecimal
141ace5
20
Vigesimal
6bf35h
36
Base36
cjug5
md5
a08d1ca06ac1553185cd6354aae8a4a2
sha1
812b0c4c03fbd62a06baed41e55b2acb51b2a213
sha256
334f6fffe50db2d597fad00386a8a77d0fd926015b82f0070266b423ecf3ddf1
sha512
90e27407938270cf26a990dd44278884af422cf0965445d4e58c14b637dbb598f7b99fd50e223e4c39d8a9ef8df6a189e431a35d56a93c460a1a7a3de80326aa
ripemd-160
beaf5467c8a58a6cc5971dbe55ec4c7d910131d0
Diameter
42162634
Circumference
132457821.2304
Area
1.3961926592436E+15
Volume
3.9244773390118E+22
Surface area
5.5847706369746E+15
Circumference
132457821.2304
Perimeter
84325268
Area
444421926454489
Diagonal
29813484.414086
Surface area
2666531558726934
Volume
9.3689995133378E+21
Space diagonal
36513912.134466
Perimeter
63243951
Area
1.924403391542E+14
Altitude
18256956.067233
Surface area
1.924403391542E+14
Volume
1.1041471814691E+21
Height
9937828.1380288