21306871 is an odd 8-digits composite number following 21306870
and preceding 21306872 . In scientific notation, it is written as 2.1306871 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 20849400 positive integers (up to 21306871) that are relatively prime to 21306871.
21306871 has 8 divisors, whose sum is 21768704
The reverse of 21306871 is 17860312
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million three hundred six thousand eight hundred seventy-one
Scientific notation
2.1306871 × 10^7
Engineering notation
2.1306871 × 10^6
Prime Factorization
163 × 67 × 1951
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21306871
Product of the distinct prime numbers
The prime factorization of 21306871 is 163 × 67 × 1951.
Since it has a total of 3 prime factors.
3 , 8 , 26 , 26 , 506 , 970 , 9359 , 1352 , 33866 , 6650 , 224872 , 265963 , 3937406 , 287145 , 33746650 , 62782557 , 667101863 , 879322559 , 5088877453 , 1504432930
n×2
42613742
n×3
63920613
n×4
85227484
n×5
106534355
n÷2
10653435.5
n÷3
7102290.3333333
n÷3
5326717.75
n÷5
4261374.2
n2
453982751810641
n3
9.6729519290543E+21
n4
2.0610033894156E+29
n5
4.3913533348841E+36
2 √n
4615.9366330139
3 √n
277.22978756027
4 √n
67.94068466695
5 √n
29.221596210689
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
-21306870
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 21306871 can be divided by 8 positive divisors.
The sum of these divisors (counting 21306871) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001010001110111110111
3
Ternary
1111002111112101
4
Quaternary
1101101313313
5
Quinary
20423304441
6
Senary
2040402531
8
Octal
121216767
10
Decimal
21306871
12
Duodecimal
7176447
16
Hexadecimal
1451df7
20
Vigesimal
6d373b
36
Base36
coohj
md5
f4cd5ed2184f5df6ce4d3f733fa09fd1
sha1
beaa11651db433322591cc1672993bfbc936ef69
sha256
c1554caf620c26ea58d2dcfdf102f8972d48ac50619e8baeae7ead713db571bc
sha512
d6d7a6ca4864601f1f2c7ba7be76c37529db32174165c3c0e02ed004a9c304501ec36756050f61b5e778835dd8f1effd3427934f54dff5affca30ab639dc3b56
ripemd-160
af0a4055aa1967e0e03d8c414ca3b2b28b4421b8
Diameter
42613742
Circumference
133875018.80917
Area
1.4262288779448E+15
Volume
4.0517966291792E+22
Surface area
5.7049155117792E+15
Circumference
133875018.80917
Perimeter
85227484
Area
453982751810641
Diagonal
30132465.939934
Surface area
2723896510863846
Volume
9.6729519290543E+21
Space diagonal
36904583.122316
Perimeter
63920613
Area
1.9658029797399E+14
Altitude
18452291.561158
Surface area
1.9658029797399E+14
Volume
1.1399683171876E+21
Height
10044155.313311