21379911 is an odd 8-digits composite number following 21379910
and preceding 21379912 . In scientific notation, it is written as 2.1379911 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 12217080 positive integers (up to 21379911) that are relatively prime to 21379911.
21379911 has 8 divisors, whose sum is 32578944
The reverse of 21379911 is 11997312
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million three hundred seventy-nine thousand nine hundred eleven
Scientific notation
2.1379911 × 10^7
Engineering notation
2.1379911 × 10^6
Prime Factorization
3 × 7 × 1018091
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21379911
Product of the distinct prime numbers
The prime factorization of 21379911 is 3 × 7 × 1018091.
Since it has a total of 3 prime factors.
2 , 8 , 29 , 91 , 176 , 658 , 3648 , 3169 , 33167 , 55161 , 687953 , 948436 , 4254639 , 6105285 , 53586576 , 63857291 , 550602688 , 939436562 , 1104281721 , 8127111124
n×2
42759822
n×3
64139733
n×4
85519644
n×5
106899555
n÷2
10689955.5
n÷3
7126637
n÷3
5344977.75
n÷5
4275982.2
n2
457100594367921
n3
9.7727700256333E+21
n4
2.0894095337151E+29
n5
4.467138987338E+36
2 √n
4623.8415846566
3 √n
277.54620770992
4 √n
67.998835171322
5 √n
29.241603134991
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
-21379910
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 21379911 can be divided by 8 positive divisors.
The sum of these divisors (counting 21379911) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001100011101101000111
3
Ternary
1111020012201120
4
Quaternary
1101203231013
5
Quinary
20433124121
6
Senary
2042125023
8
Octal
121435507
10
Decimal
21379911
12
Duodecimal
71b0773
16
Hexadecimal
1463b47
20
Vigesimal
6dc9fb
36
Base36
cq8uf
md5
622ab688373ccc2dc6f840854027dc81
sha1
687f807b05ae44e6524f1d67314680bb9c110458
sha256
5d12eddb765e6a9ac6169f155ba521cdbfa12940781b1f1831edb325dd434e47
sha512
ad676ac13ff20007abd105c09b457e1b99a9434b7786dfa28ba8518f40a060f5de3081869c83e0594b7eeffa75052d0f24f45be866989c0b9c0833f1db97f6e3
ripemd-160
783cdbc7d59742f1dddf06fd09ef6c06ce112a74
Diameter
42759822
Circumference
134333942.66401
Area
1.4360238692178E+15
Volume
4.0936083357003E+22
Surface area
5.7440954768712E+15
Circumference
134333942.66401
Perimeter
85519644
Area
457100594367921
Diagonal
30235760.09853
Surface area
2742603566207526
Volume
9.7727700256333E+21
Space diagonal
37031092.113301
Perimeter
64139733
Area
1.9793036340379E+14
Altitude
18515546.05665
Surface area
1.9793036340379E+14
Volume
1.1517319926837E+21
Height
10078586.69951