21359945 is an odd 8-digits composite number following 21359944
and preceding 21359946 . In scientific notation, it is written as 2.1359945 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 17023360 positive integers (up to 21359945) that are relatively prime to 21359945.
21359945 has 8 divisors, whose sum is 25728840
The reverse of 21359945 is 54995312
Previous prime number is 269
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million three hundred fifty-nine thousand nine hundred forty-five
Scientific notation
2.1359945 × 10^7
Engineering notation
2.1359945 × 10^6
Prime Factorization
5 × 269 × 15881
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21359945
Product of the distinct prime numbers
The prime factorization of 21359945 is 5 × 269 × 15881.
Since it has a total of 3 prime factors.
1 , 6 , 64 , 79 , 422 , 686 , 1180 , 9777 , 16695 , 4249 , 445759 , 305029 , 8454062 , 3294033 , 66163696 , 79450278 , 197954645 , 569027487 , 8070339979 , 4918773874
n×2
42719890
n×3
64079835
n×4
85439780
n×5
106799725
n÷2
10679972.5
n÷3
7119981.6666667
n÷3
5339986.25
n÷5
4271989
n2
456247250403025
n3
9.7454161750098E+21
n4
2.0816155350032E+29
n5
4.4463193338814E+36
2 √n
4621.6820531058
3 √n
277.45978369124
4 √n
67.982954136355
5 √n
29.23613953824
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
-21359944
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 21359945 can be divided by 8 positive divisors.
The sum of these divisors (counting 21359945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001011110110101001001
3
Ternary
1111012012100002
4
Quaternary
1101132311021
5
Quinary
20432004240
6
Senary
2041452345
8
Octal
121366511
10
Decimal
21359945
12
Duodecimal
71a10b5
16
Hexadecimal
145ed49
20
Vigesimal
6d9jh5
36
Base36
cptft
md5
343472ca50f88acc7c29d5ee649d2e84
sha1
424530a38bfd804b06c7ba3380308209cb6abcb3
sha256
ef2cab1f1ee7a13b879f644994eaac9b440a654b36b5c39af191e03461b91580
sha512
efd5d20d525c7bd5af440810ea3d31b83fe2d56341bf01e3870f8b4d3b00d39d510af9bff04999ce1514fd3b9b066566a5f554b17d98e1d90d85b2ef553f20e6
ripemd-160
04c52884ecd9cf9949639a808152ff3dcd708973
Diameter
42719890
Circumference
134208492.58616
Area
1.4333430100867E+15
Volume
4.0821503815448E+22
Surface area
5.7333720403467E+15
Circumference
134208492.58616
Perimeter
85439780
Area
456247250403025
Diagonal
30207523.910543
Surface area
2737483502418150
Volume
9.7454161750098E+21
Space diagonal
36996509.986877
Perimeter
64079835
Area
1.9756085462791E+14
Altitude
18498254.993438
Surface area
1.9756085462791E+14
Volume
1.1485083104724E+21
Height
10069174.636848