21086817 is an odd 8-digits composite number following 21086816
and preceding 21086818 . In scientific notation, it is written as 2.1086817 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 13110272 positive integers (up to 21086817) that are relatively prime to 21086817.
21086817 has 16 divisors, whose sum is 30041280
The reverse of 21086817 is 71868012
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million eighty-six thousand eight hundred seventeen
Scientific notation
2.1086817 × 10^7
Engineering notation
2.1086817 × 10^6
Prime Factorization
3 × 113 × 17 × 3659
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21086817
Product of the distinct prime numbers
The prime factorization of 21086817 is 3 × 113 × 17 × 3659.
Since it has a total of 4 prime factors.
2 , 1 , 89 , 88 , 179 , 29 , 9099 , 1078 , 79737 , 20785 , 629640 , 754835 , 4103818 , 5224438 , 29288030 , 31349512 , 301258339 , 486153805 , 3535154466 , 506258514
n×2
42173634
n×3
63260451
n×4
84347268
n×5
105434085
n÷2
10543408.5
n÷3
7028939
n÷3
5271704.25
n÷5
4217363.4
n2
444653851191489
n3
9.3763343884202E+21
n4
1.9771704737942E+29
n5
4.1692231958702E+36
2 √n
4592.0384362503
3 √n
276.27208780346
4 √n
67.764580986311
5 √n
29.160986095628
1 , 3 , 17 , 51 , 113 , 339 , 1921 , 3659 , 5763 , 10977 , 62203 , 186609 , 413467 , 1240401 , 7028939 , 21086817
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
-21086816
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 21086817 can be divided by 16 positive divisors.
The sum of these divisors (counting 21086817) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011100001001100001
3
Ternary
1110200022200020
4
Quaternary
1100130021201
5
Quinary
20344234232
6
Senary
2031544053
8
Octal
120341141
10
Decimal
21086817
12
Duodecimal
708b029
16
Hexadecimal
141c261
20
Vigesimal
6bfh0h
36
Base36
cjyox
md5
4438bd12316a2f6d210e50351a633203
sha1
0d59f6b14283cafe2e2a351a6f17135f4b327ec9
sha256
2d50fd34e5211403c3d1e120cc157c3ee85714d77693e3cd87d9d9eccc1d002a
sha512
caa2e3bed35e4a92afd3848f511e7a7704abc76077615c1265e56b6c3e603eda98f3e2c3b03a00716a949aefbf00c746087a9923e5f625f033a307016ed7e53f
ripemd-160
892422e02b7468ef86caa102f5098fda21c115ef
Diameter
42173634
Circumference
132492378.74958
Area
1.3969212722936E+15
Volume
3.9275497643016E+22
Surface area
5.5876850891744E+15
Circumference
132492378.74958
Perimeter
84347268
Area
444653851191489
Diagonal
29821262.58868
Surface area
2667923107148934
Volume
9.3763343884202E+21
Space diagonal
36523438.413907
Perimeter
63260451
Area
1.9254076551121E+14
Altitude
18261719.206954
Surface area
1.9254076551121E+14
Volume
1.1050116047874E+21
Height
9940420.8628932