21001618 is an even 8-digits composite number following 21001617
and preceding 21001619 . In scientific notation, it is written as 2.1001618 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 9546180 positive integers (up to 21001618) that are relatively prime to 21001618.
21001618 has 8 divisors, whose sum is 34366320
The reverse of 21001618 is 81610012
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million one thousand six hundred eighteen
Scientific notation
2.1001618 × 10^7
Engineering notation
2.1001618 × 10^6
Prime Factorization
2 × 11 × 954619
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21001618
Product of the distinct prime numbers
The prime factorization of 21001618 is 2 × 11 × 954619.
Since it has a total of 3 prime factors.
7 , 1 , 68 , 19 , 164 , 857 , 7264 , 9560 , 896 , 61428 , 285888 , 718903 , 4625072 , 8404207 , 86909854 , 90447200 , 644409788 , 641101988 , 910017744 , 1810148362
n×2
42003236
n×3
63004854
n×4
84006472
n×5
105008090
n÷2
10500809
n÷3
7000539.3333333
n÷3
5250404.5
n÷5
4200323.6
n2
441067958617924
n3
9.2631407789334E+21
n4
1.9454094411938E+29
n5
4.0856745937546E+36
2 √n
4582.7522298287
3 √n
275.89950307411
4 √n
67.696028168783
5 √n
29.137383558212
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
-21001617
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 21001618 can be divided by 8 positive divisors.
The sum of these divisors (counting 21001618) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111010110010010
3
Ternary
1110111222210201
4
Quaternary
1100013112102
5
Quinary
20334022433
6
Senary
2030045414
8
Octal
120072622
10
Decimal
21001618
12
Duodecimal
704986a
16
Hexadecimal
1407592
20
Vigesimal
6b540i
36
Base36
ci4ya
md5
f94488ee8d205f363233d98e41ada653
sha1
06383e29881adabdca0274f78148549dcdc1862e
sha256
c31ad2d54a340f1a2ee696df10eb6f11396c4acc33f73c6ae5184673b66c2011
sha512
5779e1853fbc0bfef7989c16fa0e38dc95003a2a216486fcf9e5cd3107a96763a7a2f3dfbadf967b6f1eeec25b3fc8ce732d4e94940e614aa4c9367bb97134db
ripemd-160
8deac3a5f316698079a6b8087bb0aa66cc6bcdff
Diameter
42003236
Circumference
131957057.6446
Area
1.3856558585279E+15
Volume
3.8801353360354E+22
Surface area
5.5426234341117E+15
Circumference
131957057.6446
Perimeter
84006472
Area
441067958617924
Diagonal
29700773.007379
Surface area
2646407751707544
Volume
9.2631407789334E+21
Space diagonal
36375869.417153
Perimeter
63004854
Area
1.9098802847923E+14
Altitude
18187934.708577
Surface area
1.9098802847923E+14
Volume
1.0916716099782E+21
Height
9900257.6691263