21006942 is an even 8-digits composite number following 21006941
and preceding 21006943 . In scientific notation, it is written as 2.1006942 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 6365720 positive integers (up to 21006942) that are relatively prime to 21006942.
21006942 has 16 divisors, whose sum is 45833472
The reverse of 21006942 is 24960012
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million six thousand nine hundred forty-two
Scientific notation
2.1006942 × 10^7
Engineering notation
2.1006942 × 10^6
Prime Factorization
2 × 3 × 11 × 318287
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21006942
Product of the distinct prime numbers
The prime factorization of 21006942 is 2 × 3 × 11 × 318287.
Since it has a total of 4 prime factors.
8 , 3 , 32 , 41 , 923 , 181 , 77 , 2352 , 26742 , 50751 , 22421 , 426080 , 8337879 , 4777708 , 44813694 , 35111695 , 630400009 , 727552824 , 5154194925 , 1620175984
n×2
42013884
n×3
63020826
n×4
84027768
n×5
105034710
n÷2
10503471
n÷3
7002314
n÷3
5251735.5
n÷5
4201388.4
n2
441291612191364
n3
9.2701873023905E+21
n4
1.9473828699045E+29
n5
4.0908558999878E+36
2 √n
4583.3330666667
3 √n
275.92281500573
4 √n
67.700318069169
5 √n
29.13886069871
1 , 2 , 3 , 6 , 11 , 22 , 33 , 66 , 318287 , 636574 , 954861 , 1909722 , 3501157 , 7002314 , 10503471 , 21006942
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21006941
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21006942 can be divided by 16 positive divisors.
The sum of these divisors (counting 21006942) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001000101001011110
3
Ternary
1110112021002220
4
Quaternary
1100020221132
5
Quinary
20334210232
6
Senary
2030130210
8
Octal
120105136
10
Decimal
21006942
12
Duodecimal
7050966
16
Hexadecimal
1408a5e
20
Vigesimal
6b5h72
36
Base36
ci926
md5
b2384c9771fbdbcb1dc5c44a9fc653a5
sha1
a6bb300466b4f88c01acdb3866ee776b13cf60f3
sha256
62a0f78e16d310ee6eae6e65a87ba386f0aec2729d4d8fcab745a444ab2b526f
sha512
a587e0fb12bb8c24f2201c6af66415e3544204440cea01daf12f37c9ec15c270103fbc9c503c9a586bd9b0c59d1b632850ba8e26ed9d3ec015bf3a106eb3533f
ripemd-160
21b39e2e921ecf81dba8dd3119054fa7b23eee19
Diameter
42013884
Circumference
131990509.32317
Area
1.3863584869512E+15
Volume
3.8830869768788E+22
Surface area
5.5454339478047E+15
Circumference
131990509.32317
Perimeter
84027768
Area
441291612191364
Diagonal
29708302.280385
Surface area
2647749673148184
Volume
9.2701873023905E+21
Space diagonal
36385090.855653
Perimeter
63020826
Area
1.9108487331736E+14
Altitude
18192545.427826
Surface area
1.9108487331736E+14
Volume
1.0925020507316E+21
Height
9902767.426795