21000866 is an even 8-digits composite number following 21000865
and preceding 21000867 . In scientific notation, it is written as 2.1000866 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 10492468 positive integers (up to 21000866) that are relatively prime to 21000866.
21000866 has 8 divisors, whose sum is 31525200
The reverse of 21000866 is 66800012
Previous prime number is 1667
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million eight hundred sixty-six
Scientific notation
2.1000866 × 10^7
Engineering notation
2.1000866 × 10^6
Prime Factorization
2 × 1667 × 6299
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000866
Product of the distinct prime numbers
The prime factorization of 21000866 is 2 × 1667 × 6299.
Since it has a total of 3 prime factors.
8 , 4 , 62 , 17 , 644 , 314 , 5889 , 4243 , 75887 , 98880 , 575976 , 675499 , 1691228 , 309056 , 67148560 , 98882885 , 118462859 , 729767758 , 3737265475 , 819516452
n×2
42001732
n×3
63002598
n×4
84003464
n×5
105004330
n÷2
10500433
n÷3
7000288.6666667
n÷3
5250216.5
n÷5
4200173.2
n2
441036372749956
n3
9.2621457652479E+21
n4
1.9451308208844E+29
n5
4.0849431721863E+36
2 √n
4582.6701823282
3 √n
275.89621001191
4 √n
67.695422166703
5 √n
29.137174892135
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
-21000865
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 21000866 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000866) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001010100010
3
Ternary
1110111221202212
4
Quaternary
1100013022202
5
Quinary
20334011431
6
Senary
2030042122
8
Octal
120071242
10
Decimal
21000866
12
Duodecimal
7049342
16
Hexadecimal
14072a2
20
Vigesimal
6b5236
36
Base36
ci4de
md5
4418e9072b60ad5b75f9ad20ef78693d
sha1
87724543f17947696caba586199159306c46a753
sha256
0c88feca500f9ffa8e31aa29644864b2daf00429fc7b5ccf8831a04efdacf96f
sha512
d8b666798948ef94c144932d9a9c5dfd8ba8bc520a53ec133a4c9ba65b4c891ab026b935b0079909fafabb0e8ddaeb9175ff2e88da54cd161c01e4cf41f8f707
ripemd-160
20cec01b715440743c28f1bdd01d022ccd116a25
Diameter
42001732
Circumference
131952332.68925
Area
1.3855566285972E+15
Volume
3.8797185456774E+22
Surface area
5.5422265143886E+15
Circumference
131952332.68925
Perimeter
84003464
Area
441036372749956
Diagonal
29699709.51878
Surface area
2646218236499736
Volume
9.2621457652479E+21
Space diagonal
36374566.914946
Perimeter
63002598
Area
1.909743513972E+14
Altitude
18187283.457473
Surface area
1.909743513972E+14
Volume
1.0915543464908E+21
Height
9899903.1729267