21142871 is an odd 8-digits prime number following 21142870
and preceding 21142872 . In scientific notation, it is written as 2.1142871 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 21142870 positive integers (up to 21142871) that are relatively prime to 21142871.
21142871 has 2 divisors, whose sum is 21142872
The reverse of 21142871 is 17824112
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million one hundred forty-two thousand eight hundred seventy-one
Scientific notation
2.1142871 × 10^7
Engineering notation
2.1142871 × 10^6
Prime Factorization
21142871
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21142871
Product of the distinct prime numbers
The prime factorization of 21142871 is 21142871.
Since it has a total of 1 prime factors.
5 , 2 , 21 , 75 , 554 , 72 , 1292 , 8126 , 42156 , 87336 , 82257 , 38755 , 6553934 , 8573055 , 38993925 , 50849623 , 821574398 , 707791433 , 5384783463 , 2409075764
n×2
42285742
n×3
63428613
n×4
84571484
n×5
105714355
n÷2
10571435.5
n÷3
7047623.6666667
n÷3
5285717.75
n÷5
4228574.2
n2
447020994122641
n3
9.4513072130268E+21
n4
1.9982776918639E+29
n5
4.2249327461257E+36
2 √n
4598.1377752303
3 √n
276.51667116601
4 √n
67.809569938397
5 √n
29.176473066687
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21142872
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10571436
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4598.13788397
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999054055
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21142871 can be divided by 2 positive divisors.
The sum of these divisors (counting 21142871) is 21142872, the average is 10571436.
Base
System
Value
2
Binary
1010000101001110101010111
3
Ternary
1110210011120022
4
Quaternary
1100221311113
5
Quinary
20403032441
6
Senary
2033055355
8
Octal
120516527
10
Decimal
21142871
12
Duodecimal
70b755b
16
Hexadecimal
1429d57
20
Vigesimal
6c2h3b
36
Base36
cl5xz
md5
5ce7bdaeed156f7a444e565f65eed7a8
sha1
27a1a3754811e4203c39edd5542948ff3492abaf
sha256
5ee2bd57bacef3b98ba2b75bc3a60dcb79a5d7ef3534c049ad70d4cbf996c0c9
sha512
470cbba13492f67cb8649a86feb394d899cc9aae7645d427a356071db1a37a8abb77fa74d781b80c4b690749572eda9684bab29c999f426e47808044cd43323d
ripemd-160
a14e95869e4a3a68b79be96e2cff2b23c3aca320
Diameter
42285742
Circumference
132844576.41879
Area
1.4043578711361E+15
Volume
3.9589543076353E+22
Surface area
5.6174314845444E+15
Circumference
132844576.41879
Perimeter
84571484
Area
447020994122641
Diagonal
29900534.915705
Surface area
2682125964735846
Volume
9.4513072130268E+21
Space diagonal
36620526.789875
Perimeter
63428613
Area
1.9356576846759E+14
Altitude
18310263.394937
Surface area
1.9356576846759E+14
Volume
1.1138472369014E+21
Height
9966844.9719016