20123815 is an odd 8-digits composite number following 20123814
and preceding 20123816 . In scientific notation, it is written as 2.0123815 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 16040640 positive integers (up to 20123815) that are relatively prime to 20123815.
20123815 has 8 divisors, whose sum is 24236208
The reverse of 20123815 is 51832102
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred twenty-three thousand eight hundred fifteen
Scientific notation
2.0123815 × 10^7
Engineering notation
2.0123815 × 10^6
Prime Factorization
5 × 281 × 14323
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20123815
Product of the distinct prime numbers
The prime factorization of 20123815 is 5 × 281 × 14323.
Since it has a total of 3 prime factors.
3 , 4 , 5 , 39 , 997 , 311 , 4743 , 2243 , 70475 , 27726 , 382468 , 791995 , 9094990 , 7596982 , 99003505 , 40266510 , 77076052 , 888546904 , 9920374944 , 7496202635
n×2
40247630
n×3
60371445
n×4
80495260
n×5
100619075
n÷2
10061907.5
n÷3
6707938.3333333
n÷3
5030953.75
n÷5
4024763
n2
404967930154225
n3
8.1494997073565E+21
n4
1.639990244534E+29
n5
3.3002860282806E+36
2 √n
4485.9575343509
3 √n
272.00075241286
4 √n
66.977291184034
5 √n
28.889635555856
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
-20123814
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 20123815 can be divided by 8 positive divisors.
The sum of these divisors (counting 20123815) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110001000010100111
3
Ternary
1101212101200111
4
Quaternary
1030301002213
5
Quinary
20122430230
6
Senary
1555153451
8
Octal
114610247
10
Decimal
20123815
12
Duodecimal
68a5887
16
Hexadecimal
13310a7
20
Vigesimal
65f9af
36
Base36
bzbmv
md5
f9656921e6753d5ab61b0760b63d2753
sha1
44dbb553668396840917997e8d7fae868f230a12
sha256
90a9749c5a14718d3824d1beca54d16f01cf28dfd7a8de5be9405ce843e368ff
sha512
cd0d6c0b9d28b51812f0d9dc27a9a34dc18be7bd7444f7cd4770b35e05b374190692af0b8bb225360ffa85cc6d21d2eb9b3512c92a2ceb71c951cf1ef93ba1cb
ripemd-160
65819e4985bdc491c71ec646d11fc67717eed64a
Diameter
40247630
Circumference
126441658.7324
Area
1.272244274312E+15
Volume
3.4136544548085E+22
Surface area
5.0889770972479E+15
Circumference
126441658.7324
Perimeter
80495260
Area
404967930154225
Diagonal
28459372.099687
Surface area
2429807580925350
Volume
8.1494997073565E+21
Space diagonal
34855470.022117
Perimeter
60371445
Area
1.7535625761578E+14
Altitude
17427735.011058
Surface area
1.7535625761578E+14
Volume
9.6042775105827E+20
Height
9486457.3665624