21285612 is an even 8-digits composite number following 21285611
and preceding 21285613 . In scientific notation, it is written as 2.1285612 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 7095168 positive integers (up to 21285612) that are relatively prime to 21285612.
21285612 has 12 divisors, whose sum is 38629640
The reverse of 21285612 is 21658212
Previous prime number is 27
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million two hundred eighty-five thousand six hundred twelve
Scientific notation
2.1285612 × 10^7
Engineering notation
2.1285612 × 10^6
Prime Factorization
2 × 2 × 27 × 197089
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10642806
Product of the distinct prime numbers
The prime factorization of 21285612 is 2 × 2 × 27 × 197089.
Since it has a total of 4 prime factors.
4 , 3 , 26 , 65 , 502 , 170 , 5856 , 6772 , 58797 , 96373 , 163456 , 169782 , 3641015 , 4264574 , 3020655 , 66521209 , 875610460 , 163994794 , 9003987610 , 2138335346
n×2
42571224
n×3
63856836
n×4
85142448
n×5
106428060
n÷2
10642806
n÷3
7095204
n÷3
5321403
n÷5
4257122.4
n2
453077278214544
n3
9.6440271500908E+21
n4
2.052790200343E+29
n5
4.3694895721903E+36
2 √n
4613.6332754132
3 √n
277.13755457011
4 √n
67.923731312504
5 √n
29.215762693483
1 , 2 , 4 , 27 , 54 , 108 , 197089 , 394178 , 788356 , 5321403 , 10642806 , 21285612
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21285611
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21285612 can be divided by 12 positive divisors.
The sum of these divisors (counting 21285612) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001001100101011101100
3
Ternary
1111001102101000
4
Quaternary
1101030223230
5
Quinary
20422114422
6
Senary
2040120300
8
Octal
121145354
10
Decimal
21285612
12
Duodecimal
7166090
16
Hexadecimal
144caec
20
Vigesimal
6d0e0c
36
Base36
co830
md5
de6e5cc0517dc06654d7b427bd503f64
sha1
a8976a6b830e2b0f8df957f457b9d1ac54ff9728
sha256
278674d2fa0d5823d699310444b74e563cfc953fd2b7259ab816ca9966c57add
sha512
a5799a5ee977478c5bc73ad82a00115ff77f6712710a6385441cd51e22ee87eaa21f6a76f17682b51d7b238be124578cc9b408262a5b341ad0a87345038401ae
ripemd-160
e718f7aef792804cd0095be7302a9ccfa1b08c40
Diameter
42571224
Circumference
133741444.57273
Area
1.4233842487473E+15
Volume
4.0396806460995E+22
Surface area
5.6935369949891E+15
Circumference
133741444.57273
Perimeter
85142448
Area
453077278214544
Diagonal
30102401.173812
Surface area
2718463669287264
Volume
9.6440271500908E+21
Space diagonal
36867761.454198
Perimeter
63856836
Area
1.9618821640565E+14
Altitude
18433880.727099
Surface area
1.9618821640565E+14
Volume
1.1365594992961E+21
Height
10034133.724604