21239938 is an even 8-digits composite number following 21239937
and preceding 21239939 . In scientific notation, it is written as 2.1239938 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 10461396 positive integers (up to 21239938) that are relatively prime to 21239938.
21239938 has 8 divisors, whose sum is 32335632
The reverse of 21239938 is 83993212
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million two hundred thirty-nine thousand nine hundred thirty-eight
Scientific notation
2.1239938 × 10^7
Engineering notation
2.1239938 × 10^6
Prime Factorization
2 × 67 × 158507
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21239938
Product of the distinct prime numbers
The prime factorization of 21239938 is 2 × 67 × 158507.
Since it has a total of 3 prime factors.
4 , 7 , 46 , 22 , 574 , 873 , 1499 , 2383 , 32539 , 87726 , 16008 , 867816 , 6787819 , 47563 , 84201590 , 66800135 , 29652933 , 565959268 , 68246845 , 9783196791
n×2
42479876
n×3
63719814
n×4
84959752
n×5
106199690
n÷2
10619969
n÷3
7079979.3333333
n÷3
5309984.5
n÷5
4247987.6
n2
451134966243844
n3
9.5820787126513E+21
n4
2.0352275776783E+29
n5
4.3228107565778E+36
2 √n
4608.6807222892
3 √n
276.9391882562
4 √n
67.887264801943
5 √n
29.203213864273
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21239937
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21239938 can be divided by 8 positive divisors.
The sum of these divisors (counting 21239938) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000001100010000010
3
Ternary
1110222002201101
4
Quaternary
1101001202002
5
Quinary
20414134223
6
Senary
2035125014
8
Octal
121014202
10
Decimal
21239938
12
Duodecimal
714376a
16
Hexadecimal
1441882
20
Vigesimal
6cejgi
36
Base36
cn8ua
md5
590c0e57aedeb914312a17c929d3607e
sha1
3c6da71ed4ce2634373083664e467aca694e7795
sha256
aac8304715ea9b46053787fc03206c6feffd9441b575b0205a7f7e6be67a89bd
sha512
780716d91bf32ed2dafc9fd5e2e666502d541cc228c1d21dd66b650f04a37a9cdb355449a9598cbbd49e1ec834322a5460a34d39dce92c936e1f9e753a961e37
ripemd-160
aaf92049e0ee66b0bb1cd2c8383922e11b970e58
Diameter
42479876
Circumference
133454466.36701
Area
1.4172822957291E+15
Volume
4.0137317453046E+22
Surface area
5.6691291829166E+15
Circumference
133454466.36701
Perimeter
84959752
Area
451134966243844
Diagonal
30037808.383564
Surface area
2706809797463064
Volume
9.5820787126513E+21
Space diagonal
36788651.765613
Perimeter
63719814
Area
1.953471706513E+14
Altitude
18394325.882806
Surface area
1.953471706513E+14
Volume
1.1292588059298E+21
Height
10012602.794521