21082645 is an odd 8-digits composite number following 21082644
and preceding 21082646 . In scientific notation, it is written as 2.1082645 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16767936 positive integers (up to 21082645) that are relatively prime to 21082645.
21082645 has 8 divisors, whose sum is 25446456
The reverse of 21082645 is 54628012
Previous prime number is 173
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million eighty-two thousand six hundred forty-five
Scientific notation
2.1082645 × 10^7
Engineering notation
2.1082645 × 10^6
Prime Factorization
5 × 173 × 24373
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21082645
Product of the distinct prime numbers
The prime factorization of 21082645 is 5 × 173 × 24373.
Since it has a total of 3 prime factors.
3 , 7 , 51 , 23 , 511 , 247 , 5372 , 2945 , 92224 , 97080 , 150147 , 524244 , 9088368 , 8239511 , 42781114 , 8565723 , 11227020 , 553494777 , 3323877599 , 9542077734
n×2
42165290
n×3
63247935
n×4
84330580
n×5
105413225
n÷2
10541322.5
n÷3
7027548.3333333
n÷3
5270661.25
n÷5
4216529
n2
444477920196025
n3
9.3707702018311E+21
n4
1.9756062154178E+29
n5
4.1651004499448E+36
2 √n
4591.5841492888
3 √n
276.25386657433
4 √n
67.761228953501
5 √n
29.159832111475
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21082644
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21082645 can be divided by 8 positive divisors.
The sum of these divisors (counting 21082645) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011001000010101
3
Ternary
1110200002221201
4
Quaternary
1100123020111
5
Quinary
20344121040
6
Senary
2031512501
8
Octal
120331025
10
Decimal
21082645
12
Duodecimal
7088731
16
Hexadecimal
141b215
20
Vigesimal
6bf6c5
36
Base36
cjvh1
md5
9d56eed41a20213c927d52ca983af3e1
sha1
2b1a4c910e6e75b1b835946bb711c037d078c7e1
sha256
4ea45593a653d838866db1dd2862e7d7f3aa0274bbeda6e854a9697be4a8e9b2
sha512
0939146a5c70623e434b0aa278f5aafaff2de992b6dd64ea3bcef489fbe59ad5b762474f86a484f0b95264e3646a4b10640be493b72b29d05fa92795b5c4f82b
ripemd-160
d00cb77f94e61f4232d56303c25cbca800f64b97
Diameter
42165290
Circumference
132466165.30048
Area
1.3963685687707E+15
Volume
3.9252190432734E+22
Surface area
5.5854742750828E+15
Circumference
132466165.30048
Perimeter
84330580
Area
444477920196025
Diagonal
29815362.489697
Surface area
2666867521176150
Volume
9.3707702018311E+21
Space diagonal
36516212.297938
Perimeter
63247935
Area
1.9246458515552E+14
Altitude
18258106.148969
Surface area
1.9246458515552E+14
Volume
1.1043558591093E+21
Height
9938454.1632324