20123818 is an even 8-digits composite number following 20123817
and preceding 20123819 . In scientific notation, it is written as 2.0123818 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 7944960 positive integers (up to 20123818) that are relatively prime to 20123818.
20123818 has 8 divisors, whose sum is 30205440
The reverse of 20123818 is 81832102
Previous prime number is 2431
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-three thousand eight hundred eighteen
Scientific notation
2.0123818 × 10^7
Engineering notation
2.0123818 × 10^6
Prime Factorization
2 × 2431 × 4139
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20123818
Product of the distinct prime numbers
The prime factorization of 20123818 is 2 × 2431 × 4139.
Since it has a total of 3 prime factors.
7 , 3 , 10 , 10 , 131 , 672 , 8047 , 9425 , 36598 , 35914 , 126945 , 395531 , 4062761 , 4143513 , 70556911 , 26510749 , 576352888 , 2437710 , 2637919667 , 3007332770
n×2
40247636
n×3
60371454
n×4
80495272
n×5
100619090
n÷2
10061909
n÷3
6707939.3333333
n÷3
5030954.5
n÷5
4024763.6
n2
404968050897124
n3
8.1495033520685E+21
n4
1.6399912224742E+29
n5
3.3002884882667E+36
2 √n
4485.9578687277
3 √n
272.00076592922
4 √n
66.977293680229
5 √n
28.889636417212
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
-20123817
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 20123818 can be divided by 8 positive divisors.
The sum of these divisors (counting 20123818) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110001000010101010
3
Ternary
1101212101200121
4
Quaternary
1030301002222
5
Quinary
20122430233
6
Senary
1555153454
8
Octal
114610252
10
Decimal
20123818
12
Duodecimal
68a588a
16
Hexadecimal
13310aa
20
Vigesimal
65f9ai
36
Base36
bzbmy
md5
4a1a24143abbe20093b70182abd9a037
sha1
8c563282d9d5615aaf29539bbbf5ae411aa780bb
sha256
7e288d8bce0797d7312322d4343c1b2031a231e9e7e10f6036fda74478649979
sha512
a026c77477b1421f6e69b44f894079470dec40670c3f0283ad5d40138891580d3e9a6c172cace4f400c6d6729a245fa5b38278da325773b18cc683a64f92ae9c
ripemd-160
ece57b4c4dab0cb18f81754b02096654f030829b
Diameter
40247636
Circumference
126441677.58196
Area
1.272244653637E+15
Volume
3.4136559815018E+22
Surface area
5.0889786145479E+15
Circumference
126441677.58196
Perimeter
80495272
Area
404968050897124
Diagonal
28459376.342328
Surface area
2429808305382744
Volume
8.1495033520685E+21
Space diagonal
34855475.218269
Perimeter
60371454
Area
1.7535630989899E+14
Altitude
17427737.609135
Surface area
1.7535630989899E+14
Volume
9.6042818059168E+20
Height
9486458.7807759