21388350 is an even 8-digits composite number following 21388349
and preceding 21388351 . In scientific notation, it is written as 2.1388350 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 5703520 positive integers (up to 21388350) that are relatively prime to 21388350.
21388350 has 8 divisors, whose sum is 32510520
The reverse of 21388350 is 05388312
Previous prime number is 75
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million three hundred eighty-eight thousand three hundred fifty
Scientific notation
2.1388350 × 10^7
Engineering notation
2.1388350 × 10^6
Prime Factorization
2 × 75 × 142589
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21388350
Product of the distinct prime numbers
The prime factorization of 21388350 is 2 × 75 × 142589.
Since it has a total of 3 prime factors.
3 , 6 , 75 , 77 , 11 , 327 , 1180 , 6231 , 80446 , 19436 , 547371 , 494454 , 2680253 , 780353 , 50800568 , 49525497 , 869736959 , 599448056 , 1256929581 , 8308044711
n×2
42776700
n×3
64165050
n×4
85553400
n×5
106941750
n÷2
10694175
n÷3
7129450
n÷3
5347087.5
n÷5
4277670
n2
457461515722500
n3
9.7843470098033E+21
n4
2.0927103836713E+29
n5
4.4759622134595E+36
2 √n
4624.7540475143
3 √n
277.58272024646
4 √n
68.005544240998
5 √n
29.24391119826
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
-21388349
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 21388350 can be divided by 8 positive divisors.
The sum of these divisors (counting 21388350) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001100101110000111110
3
Ternary
1111020122022010
4
Quaternary
1101211300332
5
Quinary
20433411400
6
Senary
2042232050
8
Octal
121456076
10
Decimal
21388350
12
Duodecimal
71b5626
16
Hexadecimal
1465c3e
20
Vigesimal
6ddaha
36
Base36
cqfcu
md5
743dd10557f64d2b2c13d65f28202017
sha1
4f9c153d9d36914e93faa3d4478ec4a0e606555a
sha256
ff650452dcee14fa9f7a98b25d836889555162dec2fc38454c1eeec32de05605
sha512
50b8af8119b5f868dd5e0dcb6d7e55bf22432de51db2f7468843ca2669726380a5e7d07bedc11131da600769c81b86562f8622e50741ce020021a14a4885c860
ripemd-160
cda6d43c1c82d21c51dbbf4bec2b00e6deb95669
Diameter
42776700
Circumference
134386966.46481
Area
1.4371577370939E+15
Volume
4.0984576914895E+22
Surface area
5.7486309483754E+15
Circumference
134386966.46481
Perimeter
85553400
Area
457461515722500
Diagonal
30247694.646783
Surface area
2744769094335000
Volume
9.7843470098033E+21
Space diagonal
37045708.890066
Perimeter
64165050
Area
1.9808664693471E+14
Altitude
18522854.445033
Surface area
1.9808664693471E+14
Volume
1.1530963533524E+21
Height
10082564.882261