20123905 (number)

20123905 is an odd 8-digits composite number following 20123904 and preceding 20123906. In scientific notation, it is written as 2.0123905 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 16099120 positive integers (up to 20123905) that are relatively prime to 20123905.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-three thousand nine hundred five

Notation

Scientific notation 2.0123905 × 10^7
Engineering notation 2.0123905 × 10^6

Prime Factorization of 20123905

Prime Factorization 5 × 4024781

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20123905
Product of the distinct prime numbers

The prime factorization of 20123905 is 5 × 4024781. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20123905)

Multiplication

n×y
n×2 40247810
n×3 60371715
n×4 80495620
n×5 100619525

Division

n÷y
n÷2 10061952.5
n÷3 6707968.3333333
n÷3 5030976.25
n÷5 4024781

Exponentiation

ny
n2 404971552449025
n3 8.1496090491867E+21
n4 1.6400195829297E+29
n5 3.3003598285018E+36

Nth Root

y√n
2√n 4485.9675656429
3√n 272.00115790309
4√n 66.977366069762
5√n 28.889661396508

Divisors of 20123905

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 -20123904
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 20123905 can be divided by 4 positive divisors. The sum of these divisors (counting 20123905) is 1, the average is 0.25.

Base conversion 20123905

Base System Value
2 Binary 1001100110001000100000001
3 Ternary 1101212101210211
4 Quaternary 1030301010001
5 Quinary 20122431110
6 Senary 1555154121
8 Octal 114610401
10 Decimal 20123905
12 Duodecimal 68a5941
16 Hexadecimal 1331101
20 Vigesimal 65f9f5
36 Base36 bzbpd

Cryptographic Hash Functions

md5 0cc3ed6257185ffa6daa1c6c7721bd5e
sha1 be411eb9461216b583e6a81bcaba717108faf816
sha256 1691192315876c5200437124291efdb78547fece42a3bbda959a4d914ec20a88
sha512 f111c561ca336e726c387c51be1031e562dea708825e73062713701cab2a60d0d202e1d95f63b8c3a1f367f2b92d7447a1722974bf1da9dfbf0bd1d8c0654fb0
ripemd-160 8589faed7740b38ccf35cf486010fd021b26be69

20123905 as geometric shapes

Circle

Radius = n
Diameter 40247810
Circumference 126442224.21908
Area 1.2722556540867E+15

Sphere

Radius = n
Volume 3.4137002558072E+22
Surface area 5.0890226163468E+15
Circumference 126442224.21908

Square

Length = n
Perimeter 80495620
Area 404971552449025
Diagonal 28459499.378908

Cube

Length = n
Surface area 2429829314694150
Volume 8.1496090491867E+21
Space diagonal 34855625.906689

Equilateral Triangle

Length = n
Perimeter 60371715
Area 1.7535782611544E+14
Altitude 17427812.953345

Triangular Pyramid

Length = n
Surface area 1.7535782611544E+14
Volume 9.6044063711653E+20
Height 9486499.7929692