21080105 is an odd 8-digits composite number following 21080104
and preceding 21080106 . In scientific notation, it is written as 2.1080105 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 16471728 positive integers (up to 21080105) that are relatively prime to 21080105.
21080105 has 4 divisors, whose sum is 21178368
The reverse of 21080105 is 50108012
Previous prime number is 215
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million eighty thousand one hundred five
Scientific notation
2.1080105 × 10^7
Engineering notation
2.1080105 × 10^6
Prime Factorization
215 × 98047
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21080105
Product of the distinct prime numbers
The prime factorization of 21080105 is 215 × 98047.
Since it has a total of 2 prime factors.
9 , 5 , 14 , 14 , 159 , 499 , 1914 , 4628 , 49242 , 27278 , 789725 , 508263 , 7054249 , 6376548 , 3646835 , 20565825 , 597571345 , 670874717 , 3570576621 , 8345133116
n×2
42160210
n×3
63240315
n×4
84320420
n×5
105400525
n÷2
10540052.5
n÷3
7026701.6666667
n÷3
5270026.25
n÷5
4216021
n2
444370826811025
n3
9.3673836881132E+21
n4
1.9746543172071E+29
n5
4.162592034543E+36
2 √n
4591.307547965
3 √n
276.24277193539
4 √n
67.759187922856
5 √n
29.159129452552
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
-21080104
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 21080105 can be divided by 4 positive divisors.
The sum of these divisors (counting 21080105) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011010100000101001
3
Ternary
1110122222110122
4
Quaternary
1100122200221
5
Quinary
20344030410
6
Senary
2031453025
8
Octal
120324051
10
Decimal
21080105
12
Duodecimal
7087175
16
Hexadecimal
141a829
20
Vigesimal
6bf055
36
Base36
cjtih
md5
da7113789ca4c50980d648bb5e35d9bc
sha1
9be9a9b376666a1f022ac69dde8842c80a0b93b2
sha256
adc9f9f9629e8f39ddc0fbc4c2e6c7fb1ad01e0dcefb16de5d683fbd058520e5
sha512
99e0ddda528e01175159ddcbc309131005f8535800706e45cd2ee1ab3d03d4b5996be907aad1c06094c6d38fb8d1622ce7eb066b6ce51c77ce7905d437c2c834
ripemd-160
57374035eba041f56515f39b96489e6d09fa2e7b
Diameter
42160210
Circumference
132450206.0098
Area
1.3960321249791E+15
Volume
3.9238005037244E+22
Surface area
5.5841284999166E+15
Circumference
132450206.0098
Perimeter
84320420
Area
444370826811025
Diagonal
29811770.387249
Surface area
2666224960866150
Volume
9.3673836881132E+21
Space diagonal
36511812.888887
Perimeter
63240315
Area
1.9241821235952E+14
Altitude
18255906.444443
Surface area
1.9241821235952E+14
Volume
1.1039567546402E+21
Height
9937256.7957496