21609938 is an even 8-digits composite number following 21609937
and preceding 21609939 . In scientific notation, it is written as 2.1609938 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 9246480 positive integers (up to 21609938) that are relatively prime to 21609938.
21609938 has 16 divisors, whose sum is 37105344
The reverse of 21609938 is 83990612
Previous prime number is 1307
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million six hundred nine thousand nine hundred thirty-eight
Scientific notation
2.1609938 × 10^7
Engineering notation
2.1609938 × 10^6
Prime Factorization
2 × 7 × 1307 × 1181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21609938
Product of the distinct prime numbers
The prime factorization of 21609938 is 2 × 7 × 1307 × 1181.
Since it has a total of 4 prime factors.
1 , 5 , 51 , 1 , 412 , 486 , 2113 , 2101 , 7491 , 41750 , 519832 , 211470 , 9273665 , 8620695 , 62790032 , 4036505 , 17438815 , 19662436 , 2915522184 , 7615495355
n×2
43219876
n×3
64829814
n×4
86439752
n×5
108049690
n÷2
10804969
n÷3
7203312.6666667
n÷3
5402484.5
n÷5
4321987.6
n2
466989420363844
n3
1.0091612420719E+22
n4
2.1807911873176E+29
n5
4.712676234888E+36
2 √n
4648.6490510685
3 √n
278.53803468087
4 √n
68.181002127194
5 √n
29.304256305945
1 , 2 , 7 , 14 , 1181 , 1307 , 2362 , 2614 , 8267 , 9149 , 16534 , 18298 , 1543567 , 3087134 , 10804969 , 21609938
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21609937
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21609938 can be divided by 16 positive divisors.
The sum of these divisors (counting 21609938) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010011011110111010010
3
Ternary
1111122220021002
4
Quaternary
1102123313102
5
Quinary
21013004223
6
Senary
2051102002
8
Octal
122336722
10
Decimal
21609938
12
Duodecimal
72a1902
16
Hexadecimal
149bdd2
20
Vigesimal
6f14gi
36
Base36
cv6c2
md5
0f8d614ec6adde0c32ef65b30f85b02d
sha1
5e64d35dc8ef99d656301668ed95f9bd70e1cf4a
sha256
e156378b7dfba2fe3e3c671a1739f6560324973837450efdd1fb2e60e34fcfc0
sha512
f6bf5af24b9a4c43b96ff22dd87ee91c757ab67c76f77c242e6bbea211e44e14c31dd4dc0954f073296ee6b8ce53d61eb609aabce264a20326ba71880aee8325
ripemd-160
d4934f669a3ba771cfb9980c3f7820dd7d26663a
Diameter
43219876
Circumference
135779244.93066
Area
1.4670905323192E+15
Volume
4.2271647258407E+22
Surface area
5.8683621292768E+15
Circumference
135779244.93066
Perimeter
86439752
Area
466989420363844
Diagonal
30561067.401642
Surface area
2801936522183064
Volume
1.0091612420719E+22
Space diagonal
37429510.564413
Perimeter
64829814
Area
2.0221235066683E+14
Altitude
18714755.282207
Surface area
2.0221235066683E+14
Volume
1.1893079292994E+21
Height
10187022.467214