21095918 is an even 8-digits composite number following 21095917
and preceding 21095919 . In scientific notation, it is written as 2.1095918 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 10547958 positive integers (up to 21095918) that are relatively prime to 21095918.
21095918 has 4 divisors, whose sum is 31643880
The reverse of 21095918 is 81959012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million ninety-five thousand nine hundred eighteen
Scientific notation
2.1095918 × 10^7
Engineering notation
2.1095918 × 10^6
Prime Factorization
2 × 10547959
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21095918
Product of the distinct prime numbers
The prime factorization of 21095918 is 2 × 10547959.
Since it has a total of 2 prime factors.
6 , 7 , 99 , 78 , 127 , 609 , 7648 , 7944 , 89122 , 63216 , 734334 , 631380 , 5597315 , 1210852 , 149199 , 26507618 , 794082224 , 311142114 , 563908890 , 6388946432
n×2
42191836
n×3
63287754
n×4
84383672
n×5
105479590
n÷2
10547959
n÷3
7031972.6666667
n÷3
5273979.5
n÷5
4219183.6
n2
445037756262724
n3
9.3884800130224E+21
n4
1.9805860449936E+29
n5
4.1782280797129E+36
2 √n
4593.0292835992
3 √n
276.31182812446
4 √n
67.771891545088
5 √n
29.163502818081
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21095917
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21095918 can be divided by 4 positive divisors.
The sum of these divisors (counting 21095918) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011110010111101110
3
Ternary
1110200210011022
4
Quaternary
1100132113232
5
Quinary
20400032133
6
Senary
2032054142
8
Octal
120362756
10
Decimal
21095918
12
Duodecimal
7094352
16
Hexadecimal
141e5ee
20
Vigesimal
6bgjfi
36
Base36
ck5pq
md5
90f83ea2148391aa60e59cdb2de3e278
sha1
94ed341df51229abada2e770960756f549dcf619
sha256
80edb69cc769ccf70c74d5fdecf11bdb5e695328ce0baae0bac7388c961c227d
sha512
f4d5ae0704de8d653138ce422eba57f29fa8edb699b743b0c23fa760ff77b92994a18db0cb7593a99280d2283f8fbf7ad3e2a41bf3eb52f310a0bec36de80bc0
ripemd-160
c251b9006a05d55dfe9602505ce2793d42d4316a
Diameter
42191836
Circumference
132549562.01907
Area
1.3981273456451E+15
Volume
3.9326373116381E+22
Surface area
5.5925093825802E+15
Circumference
132549562.01907
Perimeter
84383672
Area
445037756262724
Diagonal
29834133.346311
Surface area
2670226537576344
Volume
9.3884800130224E+21
Space diagonal
36539201.808307
Perimeter
63287754
Area
1.9270700128337E+14
Altitude
18269600.904153
Surface area
1.9270700128337E+14
Volume
1.1064429803738E+21
Height
9944711.1154369