21497618 is an even 8-digits composite number following 21497617
and preceding 21497619 . In scientific notation, it is written as 2.1497618 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 10748808 positive integers (up to 21497618) that are relatively prime to 21497618.
21497618 has 4 divisors, whose sum is 32246430
The reverse of 21497618 is 81679412
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million four hundred ninety-seven thousand six hundred eighteen
Scientific notation
2.1497618 × 10^7
Engineering notation
2.1497618 × 10^6
Prime Factorization
2 × 10748809
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21497618
Product of the distinct prime numbers
The prime factorization of 21497618 is 2 × 10748809.
Since it has a total of 2 prime factors.
6 , 7 , 21 , 19 , 520 , 408 , 4380 , 2079 , 5664 , 7666 , 594227 , 902249 , 6510805 , 7559257 , 39229007 , 38002068 , 328516536 , 944371697 , 8083507762 , 7929298896
n×2
42995236
n×3
64492854
n×4
85990472
n×5
107488090
n÷2
10748809
n÷3
7165872.6666667
n÷3
5374404.5
n÷5
4299523.6
n2
462147579673924
n3
9.9350721274546E+21
n4
2.1358038539847E+29
n5
4.591469537589E+36
2 √n
4636.5523829673
3 √n
278.05461894581
4 √n
68.092234380782
5 √n
29.273730364012
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
-21497617
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 21497618 can be divided by 4 positive divisors.
The sum of these divisors (counting 21497618) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010000000011100010010
3
Ternary
1111110012012002
4
Quaternary
1102000130102
5
Quinary
21000410433
6
Senary
2044434002
8
Octal
122003422
10
Decimal
21497618
12
Duodecimal
7248902
16
Hexadecimal
1480712
20
Vigesimal
6e740i
36
Base36
csro2
md5
c41633a08fdf0572d73b24bcb2f877b0
sha1
dad7ab5ecfaf46ae6ededdeed013e91601c5efc7
sha256
587f7f476327de8953f096950aafb8a95fbbceac2e5dcb7bd7614270a2de0349
sha512
d666fe2f570ed67bef0f9c288e3b732ec39ab6aefaaea39a01f028998a5064bc54d41bdb7e8b248a09649fa4ee07f2ad107d959dd94cece8c48477ef19b83ee4
ripemd-160
9e153afd85122b47f6ac1287a293790c346eec07
Diameter
42995236
Circumference
135073517.55696
Area
1.4518794411779E+15
Volume
4.1615932811328E+22
Surface area
5.8075177647116E+15
Circumference
135073517.55696
Perimeter
85990472
Area
462147579673924
Diagonal
30402222.934316
Surface area
2772885478043544
Volume
9.9350721274546E+21
Space diagonal
37234966.617707
Perimeter
64492854
Area
2.0011577214756E+14
Altitude
18617483.308854
Surface area
2.0011577214756E+14
Volume
1.1708594788168E+21
Height
10134074.311439