21406871 is an odd 8-digits prime number following 21406870
and preceding 21406872 . In scientific notation, it is written as 2.1406871 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 21406870 positive integers (up to 21406871) that are relatively prime to 21406871.
21406871 has 2 divisors, whose sum is 21406872
The reverse of 21406871 is 17860412
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred six thousand eight hundred seventy-one
Scientific notation
2.1406871 × 10^7
Engineering notation
2.1406871 × 10^6
Prime Factorization
21406871
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21406871
Product of the distinct prime numbers
The prime factorization of 21406871 is 21406871.
Since it has a total of 1 prime factors.
5 , 7 , 49 , 40 , 729 , 40 , 4422 , 3242 , 35484 , 13785 , 442943 , 971662 , 347060 , 5492374 , 75910593 , 62420996 , 756065068 , 629843807 , 3001169446 , 460594051
n×2
42813742
n×3
64220613
n×4
85627484
n×5
107034355
n÷2
10703435.5
n÷3
7135623.6666667
n÷3
5351717.75
n÷5
4281374.2
n2
458254126010641
n3
9.8097869607275E+21
n4
2.0999684400578E+29
n5
4.4953753500388E+36
2 √n
4626.7559909725
3 √n
277.66282033698
4 √n
68.020261620877
5 √n
29.248974131779
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21406872
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10703436
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4626.7560990396
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999065721
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21406871 can be divided by 2 positive divisors.
The sum of these divisors (counting 21406871) is 21406872, the average is 10703436.
Base
System
Value
2
Binary
1010001101010010010010111
3
Ternary
1111021120201002
4
Quaternary
1101222102113
5
Quinary
20440004441
6
Senary
2042453515
8
Octal
121522227
10
Decimal
21406871
12
Duodecimal
720429b
16
Hexadecimal
146a497
20
Vigesimal
6dfh3b
36
Base36
cqtnb
md5
2f121a5582709689dd63b8c942c5aac2
sha1
b7ebadf7a3437a628e37136335645265d34ce9e1
sha256
2d1823df5a97abb24929678c9fdf5597057d6dd6e9b13aa25af3fb2f5b07e90e
sha512
d0c00424450d676843edee4b6e781eee3680e53e1d6f8cee860954e7ff8e1f0e0f7e5b46595b47c5222700a95410d074b60105b42d3bea35a00c9e9149dc05af
ripemd-160
5215a1be516f8198a76804ef4ca4b54e42abcfb4
Diameter
42813742
Circumference
134503337.33989
Area
1.4396477957522E+15
Volume
4.1091139532137E+22
Surface area
5.758591183009E+15
Circumference
134503337.33989
Perimeter
85627484
Area
458254126010641
Diagonal
30273887.296171
Surface area
2749524756063846
Volume
9.8097869607275E+21
Space diagonal
37077788.203073
Perimeter
64220613
Area
1.9842985725713E+14
Altitude
18538894.101536
Surface area
1.9842985725713E+14
Volume
1.156094480321E+21
Height
10091295.76539