21016885 is an odd 8-digits composite number following 21016884
and preceding 21016886 . In scientific notation, it is written as 2.1016885 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 16496064 positive integers (up to 21016885) that are relatively prime to 21016885.
21016885 has 8 divisors, whose sum is 25696440
The reverse of 21016885 is 58861012
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million sixteen thousand eight hundred eighty-five
Scientific notation
2.1016885 × 10^7
Engineering notation
2.1016885 × 10^6
Prime Factorization
5 × 53 × 79309
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21016885
Product of the distinct prime numbers
The prime factorization of 21016885 is 5 × 53 × 79309.
Since it has a total of 3 prime factors.
9 , 4 , 57 , 65 , 168 , 879 , 7560 , 172 , 20855 , 81831 , 324400 , 847501 , 7829621 , 487638 , 92729198 , 39002053 , 745595580 , 435171248 , 9476887670 , 8258663785
n×2
42033770
n×3
63050655
n×4
84067540
n×5
105084425
n÷2
10508442.5
n÷3
7005628.3333333
n÷3
5254221.25
n÷5
4203377
n2
441709455103225
n3
9.2833568213171E+21
n4
1.9510724272759E+29
n5
4.1005464830728E+36
2 √n
4584.4176293178
3 √n
275.96634137609
4 √n
67.708327621629
5 √n
29.14161857612
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
-21016884
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 21016885 can be divided by 8 positive divisors.
The sum of these divisors (counting 21016885) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001011000100110101
3
Ternary
1110112202202011
4
Quaternary
1100023010311
5
Quinary
20340020020
6
Senary
2030244221
8
Octal
120130465
10
Decimal
21016885
12
Duodecimal
7056671
16
Hexadecimal
140b135
20
Vigesimal
6b7245
36
Base36
cigqd
md5
586b1c68a8f5325e5b6c1fba9342cf62
sha1
e14d6595a3a6482034ea77e8508f3493d1d263b2
sha256
e7ff8aacb73e8a18dc61a8ad66db01bb05a418bc15dcfd030114ad98f06f6b8b
sha512
472d39dfd0d052d3b984ad164b03da828f243e362cf089a694f5bc72bd1db3e5600d786514b945b79d772e8a2dc66e3bf85e0e71c07908648debe4089319cf87
ripemd-160
6bb61b831f2ddef7b047712930c54abd4d5979d6
Diameter
42033770
Circumference
132052983.03468
Area
1.3876711791734E+15
Volume
3.888603412067E+22
Surface area
5.5506847166938E+15
Circumference
132052983.03468
Perimeter
84067540
Area
441709455103225
Diagonal
29722363.805836
Surface area
2650256730619350
Volume
9.2833568213171E+21
Space diagonal
36402312.636832
Perimeter
63050655
Area
1.9126580460559E+14
Altitude
18201156.318416
Surface area
1.9126580460559E+14
Volume
1.0940540934213E+21
Height
9907454.6019452