18806421 is an odd 8-digits composite number following 18806420
and preceding 18806422 . In scientific notation, it is written as 1.8806421 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 12537612 positive integers (up to 18806421) that are relatively prime to 18806421.
18806421 has 4 divisors, whose sum is 25075232
The reverse of 18806421 is 12460881
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighteen million eight hundred six thousand four hundred twenty-one
Scientific notation
1.8806421 × 10^7
Engineering notation
1.8806421 × 10^6
Prime Factorization
3 × 6268807
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18806421
Product of the distinct prime numbers
The prime factorization of 18806421 is 3 × 6268807.
Since it has a total of 2 prime factors.
2 , 1 , 56 , 13 , 405 , 491 , 3596 , 7174 , 75753 , 15572 , 82404 , 517576 , 3324842 , 1938955 , 59918669 , 37633370 , 149232194 , 442226932 , 7445077001 , 6070733071
n×2
37612842
n×3
56419263
n×4
75225684
n×5
94032105
n÷2
9403210.5
n÷3
6268807
n÷3
4701605.25
n÷5
3761284.2
n2
353681470829241
n3
6.6514826403139E+21
n4
1.2509058280794E+29
n5
2.3525061634214E+36
2 √n
4336.6370611339
3 √n
265.93084772205
4 √n
65.853147693439
5 √n
28.501074331556
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
-18806420
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 18806421 can be divided by 4 positive divisors.
The sum of these divisors (counting 18806421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111101111011010010101
3
Ternary
1022101110120010
4
Quaternary
1013233122111
5
Quinary
14303301141
6
Senary
1511030433
8
Octal
107573225
10
Decimal
18806421
12
Duodecimal
636b419
16
Hexadecimal
11ef695
20
Vigesimal
5hag11
36
Base36
b734l
md5
b2d37987967c2c478bfba641f2795639
sha1
532dc0c7371623d61d9651f8dc74e38185ab78be
sha256
8c8ec439a9fe3c2f4516ae5e056734c535714c9304bff08eab45bea2990a5259
sha512
12dc8fa527e33ef41ccfb16caf38de99095b208c5147d4b7bad0ca5c820ac567d4dd64ab04e7abeae959db26fc434cd60cedcc06633dec94ed86291aae9d167f
ripemd-160
49c81592a51f9fd94f82ecf4ff0b64d5f2998ce0
Diameter
37612842
Circumference
118164228.10783
Area
1.111123110468E+15
Volume
2.7861665331054E+22
Surface area
4.4444924418719E+15
Circumference
118164228.10783
Perimeter
75225684
Area
353681470829241
Diagonal
26596295.637898
Surface area
2122088824975446
Volume
6.6514826403139E+21
Space diagonal
32573676.68053
Perimeter
56419263
Area
1.5314856929298E+14
Altitude
16286838.340265
Surface area
1.5314856929298E+14
Volume
7.8388474665176E+20
Height
8865431.8792994