21371871 is an odd 8-digits composite number following 21371870
and preceding 21371872 . In scientific notation, it is written as 2.1371871 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14247912 positive integers (up to 21371871) that are relatively prime to 21371871.
21371871 has 4 divisors, whose sum is 28495832
The reverse of 21371871 is 17817312
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million three hundred seventy-one thousand eight hundred seventy-one
Scientific notation
2.1371871 × 10^7
Engineering notation
2.1371871 × 10^6
Prime Factorization
3 × 7123957
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21371871
Product of the distinct prime numbers
The prime factorization of 21371871 is 3 × 7123957.
Since it has a total of 2 prime factors.
4 , 10 , 25 , 27 , 476 , 171 , 7308 , 155 , 68921 , 60237 , 143673 , 622895 , 1783582 , 3152452 , 79519389 , 3760262 , 776803213 , 499804362 , 1931020413 , 4762463823
n×2
42743742
n×3
64115613
n×4
85487484
n×5
106859355
n÷2
10685935.5
n÷3
7123957
n÷3
5342967.75
n÷5
4274374.2
n2
456756870040641
n3
9.7617489048723E+21
n4
2.0862683832932E+29
n5
4.4587458759121E+36
2 √n
4622.9720959573
3 √n
277.51141256529
4 √n
67.992441461955
5 √n
29.239403520019
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21371870
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21371871 can be divided by 4 positive divisors.
The sum of these divisors (counting 21371871) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100001101111011111
3
Ternary
1111012210200210
4
Quaternary
1101201233133
5
Quinary
20432344441
6
Senary
2042023503
8
Octal
121415737
10
Decimal
21371871
12
Duodecimal
71a7b93
16
Hexadecimal
1461bdf
20
Vigesimal
6db9db
36
Base36
cq2n3
md5
08e388946a2e44cb50198704aa540a88
sha1
374a5892d5e8213a307fe92b76ed58da9da2452e
sha256
ad3c7d14ce51001cbb94686d8ca6ec4dec3afcff5a988a9ac2deae924c57cbc3
sha512
116405450c52a89441168d07a81a255ab06b6ff699b3bf3b22375305ba1a32de71fad06fb8f5b02fb41d175dba583314390960c78f2eb7313fb8ac76e48699c7
ripemd-160
a818f6faa80d7e6033626e0677097a4e595b734a
Diameter
42743742
Circumference
134283425.85414
Area
1.4349440273963E+15
Volume
4.0889918194314E+22
Surface area
5.7397761095854E+15
Circumference
134283425.85414
Perimeter
85487484
Area
456756870040641
Diagonal
30224389.821488
Surface area
2740541220243846
Volume
9.7617489048723E+21
Space diagonal
37017166.424808
Perimeter
64115613
Area
1.9778152640413E+14
Altitude
18508583.212404
Surface area
1.9778152640413E+14
Volume
1.1504331411459E+21
Height
10074796.607163