21388382 is an even 8-digits composite number following 21388381
and preceding 21388383 . In scientific notation, it is written as 2.1388382 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 10687384 positive integers (up to 21388382) that are relatively prime to 21388382.
21388382 has 8 divisors, whose sum is 32103000
The reverse of 21388382 is 28388312
Previous prime number is 2459
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million three hundred eighty-eight thousand three hundred eighty-two
Scientific notation
2.1388382 × 10^7
Engineering notation
2.1388382 × 10^6
Prime Factorization
2 × 2459 × 4349
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21388382
Product of the distinct prime numbers
The prime factorization of 21388382 is 2 × 2459 × 4349.
Since it has a total of 3 prime factors.
2 , 6 , 43 , 27 , 634 , 500 , 5805 , 3565 , 13108 , 92556 , 784877 , 648830 , 4464013 , 9212103 , 57334774 , 18131461 , 517458424 , 52928298 , 1202626874 , 5433988663
n×2
42776764
n×3
64165146
n×4
85553528
n×5
106941910
n÷2
10694191
n÷3
7129460.6666667
n÷3
5347095.5
n÷5
4277676.4
n2
457462884577924
n3
9.7843909261745E+21
n4
2.0927229076636E+29
n5
4.4759956969259E+36
2 √n
4624.7575071565
3 √n
277.58285868074
4 √n
68.005569677464
5 √n
29.243919948862
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
-21388381
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 21388382 can be divided by 8 positive divisors.
The sum of these divisors (counting 21388382) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001100101110001011110
3
Ternary
1111020122100022
4
Quaternary
1101211301132
5
Quinary
20433412012
6
Senary
2042232142
8
Octal
121456136
10
Decimal
21388382
12
Duodecimal
71b5652
16
Hexadecimal
1465c5e
20
Vigesimal
6ddaj2
36
Base36
cqfdq
md5
dcd011a08bc79fb77b2353f8b505b7fe
sha1
bd415dfd1e2636249f3f2bfe730fb4c847bf2562
sha256
ac208517f5839a44726f0c054af9e185964b160178c09a566c04a54fce763bcb
sha512
4bbfa4d5b4e80d84e70ddc8d80347d1ec44c4e1cbb3f6a489ac216c7caa51b7f607d5992ff4c9861727d646ec20aa0414c04f1212687cb94abb7daaf1a3667eb
ripemd-160
41a0e004bf954c57b164b2efd48320eb80e9e57a
Diameter
42776764
Circumference
134387167.52674
Area
1.43716203748E+15
Volume
4.0984760871361E+22
Surface area
5.74864814992E+15
Circumference
134387167.52674
Perimeter
85553528
Area
457462884577924
Diagonal
30247739.901617
Surface area
2744777307467544
Volume
9.7843909261745E+21
Space diagonal
37045764.315692
Perimeter
64165146
Area
1.980872396665E+14
Altitude
18522882.157846
Surface area
1.980872396665E+14
Volume
1.1531015289464E+21
Height
10082579.967206