21000239 is an odd 8-digits composite number following 21000238
and preceding 21000240 . In scientific notation, it is written as 2.1000239 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 19384824 positive integers (up to 21000239) that are relatively prime to 21000239.
21000239 has 4 divisors, whose sum is 22615656
The reverse of 21000239 is 93200012
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million two hundred thirty-nine
Scientific notation
2.1000239 × 10^7
Engineering notation
2.1000239 × 10^6
Prime Factorization
13 × 1615403
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000239
Product of the distinct prime numbers
The prime factorization of 21000239 is 13 × 1615403.
Since it has a total of 2 prime factors.
9 , 6 , 29 , 72 , 217 , 89 , 441 , 6052 , 59533 , 93612 , 478745 , 586679 , 102211 , 3927976 , 27737472 , 3699008 , 795034333 , 369668152 , 786662286 , 3561599402
n×2
42000478
n×3
63000717
n×4
84000956
n×5
105001195
n÷2
10500119.5
n÷3
7000079.6666667
n÷3
5250059.75
n÷5
4200047.8
n2
441010038057121
n3
9.2613162005986E+21
n4
1.9448985366714E+29
n5
4.084333410085E+36
2 √n
4582.6017719195
3 √n
275.89346427363
4 √n
67.69491688391
5 √n
29.137000906673
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
-21000238
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 21000239 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000239) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111000000101111
3
Ternary
1110111220220122
4
Quaternary
1100013000233
5
Quinary
20334001424
6
Senary
2030035155
8
Octal
120070057
10
Decimal
21000239
12
Duodecimal
7048abb
16
Hexadecimal
140702f
20
Vigesimal
6b50bj
36
Base36
ci3vz
md5
41d0acc8fc132b175d31281666932e98
sha1
75669106de815795d6c04129b33cbc986cfda49c
sha256
4126b40d6de3f999cfb8bd27b28b6e072309b358dc3eca3fe2661a658a04e979
sha512
ecad3f360a982c8616e9e7dc35528b57f8f2667e433bdce3e72c635960382cd54bd666742df368e3d465d3508a4a11f5173888649c13d6d7f893602ee2464ae9
ripemd-160
26fb32fad15f73ff61a0ed53357a1c599e6c11db
Diameter
42000478
Circumference
131948393.13206
Area
1.3854738957196E+15
Volume
3.8793710584497E+22
Surface area
5.5418955828784E+15
Circumference
131948393.13206
Perimeter
84000956
Area
441010038057121
Diagonal
29698822.806876
Surface area
2646060228342726
Volume
9.2613162005986E+21
Space diagonal
36373480.919089
Perimeter
63000717
Area
1.909629481407E+14
Altitude
18186740.459545
Surface area
1.909629481407E+14
Volume
1.0914565813594E+21
Height
9899607.6022921