21342639 is an odd 8-digits composite number following 21342638
and preceding 21342640 . In scientific notation, it is written as 2.1342639 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14228424 positive integers (up to 21342639) that are relatively prime to 21342639.
21342639 has 4 divisors, whose sum is 28456856
The reverse of 21342639 is 93624312
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 forty-two thousand six hundred thirty-nine
Scientific notation
2.1342639 × 10^7
Engineering notation
2.1342639 × 10^6
Prime Factorization
3 × 7114213
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21342639
Product of the distinct prime numbers
The prime factorization of 21342639 is 3 × 7114213.
Since it has a total of 2 prime factors.
5 , 10 , 68 , 15 , 728 , 500 , 9245 , 2578 , 50006 , 2172 , 601724 , 452654 , 5705904 , 4809768 , 6548430 , 98278679 , 690609369 , 135495136 , 2021043734 , 2741249446
n×2
42685278
n×3
64027917
n×4
85370556
n×5
106713195
n÷2
10671319.5
n÷3
7114213
n÷3
5335659.75
n÷5
4268527.8
n2
455508239484321
n3
9.7217479168394E+21
n4
2.0748775623811E+29
n5
4.4283362783099E+36
2 √n
4619.8094116533
3 √n
277.38483005882
4 √n
67.969179865975
5 √n
29.23140053087
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
-21342638
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 21342639 can be divided by 4 positive divisors.
The sum of these divisors (counting 21342639) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001011010100110101111
3
Ternary
1111011022121010
4
Quaternary
1101122212233
5
Quinary
20430431024
6
Senary
2041240303
8
Octal
121324657
10
Decimal
21342639
12
Duodecimal
7193093
16
Hexadecimal
145a9af
20
Vigesimal
6d7gbj
36
Base36
cpg33
md5
7b328f35eff349d7ccbaf3ac26da1f76
sha1
eaa45d42a18390ba7342bc1d517c5e2c8cae5161
sha256
8b95373d8575d8a2db4058e0d3c052537de4784f56c2aa7e30100a1cc252e785
sha512
f3fe82dc59adf0461a1f1d40ffecee3b744ce4fcacec1859c80091b28eb2aa63ea749cfa9514913ed533d7c6cdc7df5174cf7a3af9fcf7d94e99651227eac45d
ripemd-160
7ad5246109d1268a650bf4f57a0bda9e11289ba6
Diameter
42685278
Circumference
134099755.78124
Area
1.4310213388136E+15
Volume
4.0722362447459E+22
Surface area
5.7240853552543E+15
Circumference
134099755.78124
Perimeter
85370556
Area
455508239484321
Diagonal
30183049.530633
Surface area
2733049436905926
Volume
9.7217479168394E+21
Space diagonal
36966535.115601
Perimeter
64027917
Area
1.9724085351327E+14
Altitude
18483267.557801
Surface area
1.9724085351327E+14
Volume
1.1457189794972E+21
Height
10061016.510211