21125566 is an even 8-digits composite number following 21125565
and preceding 21125567 . In scientific notation, it is written as 2.1125566 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 8230320 positive integers (up to 21125566) that are relatively prime to 21125566.
21125566 has 16 divisors, whose sum is 36687456
The reverse of 21125566 is 66552112
Previous prime number is 77
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred twenty-five thousand five hundred sixty-six
Scientific notation
2.1125566 × 10^7
Engineering notation
2.1125566 × 10^6
Prime Factorization
2 × 7 × 77 × 19597
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21125566
Product of the distinct prime numbers
The prime factorization of 21125566 is 2 × 7 × 77 × 19597.
Since it has a total of 4 prime factors.
10 , 3 , 31 , 32 , 450 , 411 , 3619 , 5595 , 61591 , 78106 , 52676 , 305801 , 1741209 , 7877076 , 413702 , 9068401 , 941964148 , 870119790 , 9036963781 , 3094026889
n×2
42251132
n×3
63376698
n×4
84502264
n×5
105627830
n÷2
10562783
n÷3
7041855.3333333
n÷3
5281391.5
n÷5
4225113.2
n2
446289538820356
n3
9.428119107459E+21
n4
1.9917435246049E+29
n5
4.2076709284113E+36
2 √n
4596.2556499829
3 √n
276.44120952702
4 √n
67.795690497132
5 √n
29.171695435047
1 , 2 , 7 , 14 , 77 , 154 , 539 , 1078 , 19597 , 39194 , 137179 , 274358 , 1508969 , 3017938 , 10562783 , 21125566
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21125565
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21125566 can be divided by 16 positive divisors.
The sum of these divisors (counting 21125566) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100101100110111110
3
Ternary
1110202021211101
4
Quaternary
1100211212332
5
Quinary
20402004231
6
Senary
2032443314
8
Octal
120454676
10
Decimal
21125566
12
Duodecimal
70a953a
16
Hexadecimal
14259be
20
Vigesimal
6c0di6
36
Base36
cksla
md5
668b98fe64e5557de77a4b666e3a614d
sha1
7acaad04d7b359b58fa161157f2f2f96425a480f
sha256
e6ee020472d48766844d0cc2682230cd33d7ad95f0b639a040790c334d29c619
sha512
c13f19dca32f3af062f54dbc13b59f42e2291424a0b1765f21b5e17577565e1ba0d06d878c7aac653a3fd16aeb8c3a52b571d78fd2998889d70e21c7ddf25618
ripemd-160
62d250a1e8d53c55e6c7a1b682b90e26fe05de0b
Diameter
42251132
Circumference
132735845.89705
Area
1.402059936532E+15
Volume
3.9492412966884E+22
Surface area
5.608239746128E+15
Circumference
132735845.89705
Perimeter
84502264
Area
446289538820356
Diagonal
29876061.950008
Surface area
2677737232922136
Volume
9.428119107459E+21
Space diagonal
36590553.65065
Perimeter
63376698
Area
1.9324903903083E+14
Altitude
18295276.825325
Surface area
1.9324903903083E+14
Volume
1.1111144924531E+21
Height
9958687.3166693