20213818 is an even 8-digits composite number following 20213817
and preceding 20213819 . In scientific notation, it is written as 2.0213818 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 10106908 positive integers (up to 20213818) that are relatively prime to 20213818.
20213818 has 4 divisors, whose sum is 30320730
The reverse of 20213818 is 81831202
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred thirteen thousand eight hundred eighteen
Scientific notation
2.0213818 × 10^7
Engineering notation
2.0213818 × 10^6
Prime Factorization
2 × 10106909
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20213818
Product of the distinct prime numbers
The prime factorization of 20213818 is 2 × 10106909.
Since it has a total of 2 prime factors.
4 , 4 , 85 , 29 , 460 , 721 , 2891 , 839 , 36133 , 8224 , 333271 , 935042 , 9289156 , 1770581 , 7892232 , 84910058 , 712850012 , 808241881 , 3554612722 , 5402457561
n×2
40427636
n×3
60641454
n×4
80855272
n×5
101069090
n÷2
10106909
n÷3
6737939.3333333
n÷3
5053454.5
n÷5
4042763.6
n2
408598438137124
n3
8.2593344635881E+21
n4
1.669526836481E+29
n5
3.3747511618742E+36
2 √n
4495.9779803731
3 √n
272.40565372878
4 √n
67.052054259158
5 √n
28.915431009419
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
-20213817
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 20213818 can be divided by 4 positive divisors.
The sum of these divisors (counting 20213818) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000111000000111010
3
Ternary
1102000222010221
4
Quaternary
1031013000322
5
Quinary
20133320233
6
Senary
2001130254
8
Octal
115070072
10
Decimal
20213818
12
Duodecimal
692998a
16
Hexadecimal
134703a
20
Vigesimal
666eai
36
Base36
c192y
md5
db2539a8058ac72bb67fc101f69dc803
sha1
22dfd0058c7ea882cb8fb86e4520fc8d82723b88
sha256
33184fead1e05ca27471d9bff413a6b222a177a827c70dc380812960df507de2
sha512
9b83de4f1768268f4b0e45eb360b29a2e53fb0f89f744e7b9359b0c8356f5eaa0f3642169b90f6ad5164985ae958e48f0ffad0dfe6b49a64f2f2070458aa79ff
ripemd-160
8ac6b233d2834b4364497eca5a92b44298d94ef5
Diameter
40427636
Circumference
127007164.2596
Area
1.2836498515199E+15
Volume
3.4596619299132E+22
Surface area
5.1345994060794E+15
Circumference
127007164.2596
Perimeter
80855272
Area
408598438137124
Diagonal
28586655.562941
Surface area
2451590628822744
Volume
8.2593344635881E+21
Space diagonal
35011359.79095
Perimeter
60641454
Area
1.769283136867E+14
Altitude
17505679.895475
Surface area
1.769283136867E+14
Volume
9.7337190121515E+20
Height
9528885.1876471