21000285 is an odd 8-digits composite number following 21000284
and preceding 21000286 . In scientific notation, it is written as 2.1000285 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 11200128 positive integers (up to 21000285) that are relatively prime to 21000285.
21000285 has 8 divisors, whose sum is 28000440
The reverse of 21000285 is 58200012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million two hundred eighty-five
Scientific notation
2.1000285 × 10^7
Engineering notation
2.1000285 × 10^6
Prime Factorization
9 × 5 × 466673
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000285
Product of the distinct prime numbers
The prime factorization of 21000285 is 9 × 5 × 466673.
Since it has a total of 3 prime factors.
9 , 6 , 55 , 15 , 607 , 346 , 4012 , 4799 , 88758 , 4387 , 899421 , 747943 , 9768405 , 8617132 , 4984391 , 79247641 , 340737290 , 711375806 , 3827879606 , 2070489603
n×2
42000570
n×3
63000855
n×4
84001140
n×5
105001425
n÷2
10500142.5
n÷3
7000095
n÷3
5250071.25
n÷5
4200057
n2
441011970081225
n3
9.2613770601172E+21
n4
1.9449155775492E+29
n5
4.0843781429473E+36
2 √n
4582.6067908997
3 √n
275.89366571721
4 √n
67.694953954484
5 √n
29.137013671298
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
-21000284
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 21000285 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000285) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111000001011101
3
Ternary
1110111220222100
4
Quaternary
1100013001131
5
Quinary
20334002120
6
Senary
2030035313
8
Octal
120070135
10
Decimal
21000285
12
Duodecimal
7048b39
16
Hexadecimal
140705d
20
Vigesimal
6b50e5
36
Base36
ci3x9
md5
ddaf0a562f0d698a668561b3764ddf37
sha1
9f1d1b982f0fbba7dc5758c304a2c67dd12054c2
sha256
eedfbc11f984d1dc8c9204ab926322f107924274830a68733ca38129fac98dab
sha512
f8bf1a8181dee7178f4843d89aef7923d1fb6da86198497d340c4f774986169a6dfa682ed9ccb34fbb02b4a5e1e2c8a8007d0d69e5e30df42264e4e725214e63
ripemd-160
361f60ba1426cabcf5f24bcbc789ad4d1adbb90e
Diameter
42000570
Circumference
131948682.15858
Area
1.3854799653523E+15
Volume
3.8793965512252E+22
Surface area
5.5419198614094E+15
Circumference
131948682.15858
Perimeter
84001140
Area
441011970081225
Diagonal
29698887.8607
Surface area
2646071820487350
Volume
9.2613770601172E+21
Space diagonal
36373560.593427
Perimeter
63000855
Area
1.9096378473168E+14
Altitude
18186780.296713
Surface area
1.9096378473168E+14
Volume
1.0914637537224E+21
Height
9899629.2869001