20505904 (number)

20505904 is an even 8-digits composite number following 20505903 and preceding 20505905. In scientific notation, it is written as 2.0505904 × 10^7. The sum of its digits is 25. It has a total of 6 prime factors and 20 positive divisors. There are 10002560 positive integers (up to 20505904) that are relatively prime to 20505904.

Interesting facts

Basic properties

Name

Name twenty million five hundred five thousand nine hundred four

Notation

Scientific notation 2.0505904 × 10^7
Engineering notation 2.0505904 × 10^6

Prime Factorization of 20505904

Prime Factorization 2 × 2 × 2 × 2 × 41 × 31259

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2563238
Product of the distinct prime numbers

The prime factorization of 20505904 is 2 × 2 × 2 × 2 × 41 × 31259. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 2, 86, 67, 718, 628, 5633, 3938, 94223, 77647, 717943, 941179, 7361476, 2078106, 10616325, 42100638, 410869226, 468970975, 9164148593, 7422041344

Basic calculations (n = 20505904)

Multiplication

n×y
n×2 41011808
n×3 61517712
n×4 82023616
n×5 102529520

Division

n÷y
n÷2 10252952
n÷3 6835301.3333333
n÷3 5126476
n÷5 4101180.8

Exponentiation

ny
n2 420492098857216
n3 8.6225706119246E+21
n4 1.7681360520135E+29
n5 3.6257228141527E+36

Nth Root

y√n
2√n 4528.3445098623
3√n 273.71145499568
4√n 67.292975189557
5√n 28.998516703666

Divisors of 20505904

1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31259, 62518, 125036, 250072, 500144, 1281619, 2563238, 5126476, 10252952, 20505904

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20505903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20505904 can be divided by 20 positive divisors. The sum of these divisors (counting 20505904) is 1, the average is 0.05.

Base conversion 20505904

Base System Value
2 Binary 1001110001110010100110000
3 Ternary 1102120210210221
4 Quaternary 1032032110300
5 Quinary 20222142104
6 Senary 2011302424
8 Octal 116162460
10 Decimal 20505904
12 Duodecimal 6a4aa14
16 Hexadecimal 138e530
20 Vigesimal 6834f4
36 Base36 c7igg

Cryptographic Hash Functions

md5 f974b3003ba4463266c3786cf617d993
sha1 9c53a1af5ae5a638ee1d0cae6c04f9e58fd889d0
sha256 7f031b593a21ebbac1f71ea68ea5cda677fa3174a774353acac2474723bc2e19
sha512 1159775d9a986bcfd0a22936a88484d9f0ea756c109f9d52e16120a33234a70311d647ac1133f4267745a038e300769a9d33d14358e178dd5e78e2467704bf41
ripemd-160 efe3cfbbb23f02ef87f291c82d93d8f340729372

20505904 as geometric shapes

Circle

Radius = n
Diameter 41011808
Circumference 128842394.72324
Area 1.3210148886624E+15

Sphere

Radius = n
Volume 3.6118139319309E+22
Surface area 5.2840595546495E+15
Circumference 128842394.72324

Square

Length = n
Perimeter 82023616
Area 420492098857216
Diagonal 28999727.545521

Cube

Length = n
Surface area 2522952593143296
Volume 8.6225706119246E+21
Space diagonal 35517267.58313

Equilateral Triangle

Length = n
Perimeter 61517712
Area 1.8207841985049E+14
Altitude 17758633.791565

Triangular Pyramid

Length = n
Surface area 1.8207841985049E+14
Volume 1.0161796918253E+21
Height 9666575.8485069