20389985 (number)

20389985 is an odd 8-digits composite number following 20389984 and preceding 20389986. In scientific notation, it is written as 2.0389985 × 10^7. The sum of its digits is 44. It has a total of 5 prime factors and 32 positive divisors. There are 12600000 positive integers (up to 20389985) that are relatively prime to 20389985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0389985 × 10^7
Engineering notation 2.0389985 × 10^6

Prime Factorization of 20389985

Prime Factorization 7 × 5 × 251 × 11 × 211

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20389985
Product of the distinct prime numbers

The prime factorization of 20389985 is 7 × 5 × 251 × 11 × 211. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 6, 58, 80, 539, 825, 4910, 3221, 9959, 39196, 151349, 644500, 5860516, 6231569, 3425668, 12715317, 381065970, 110047180, 9742049520, 7077610046

Basic calculations (n = 20389985)

Multiplication

n×y
n×2 40779970
n×3 61169955
n×4 81559940
n×5 101949925

Division

n÷y
n÷2 10194992.5
n÷3 6796661.6666667
n÷3 5097496.25
n÷5 4077997

Exponentiation

ny
n2 415751488300225
n3 8.4771666101693E+21
n4 1.7284930002385E+29
n5 3.5243946347468E+36

Nth Root

y√n
2√n 4515.5271010149
3√n 273.19472035226
4√n 67.197671842222
5√n 28.965656841844

Divisors of 20389985

1, 5, 7, 11, 35, 55, 77, 211, 251, 385, 1055, 1255, 1477, 1757, 2321, 2761, 7385, 8785, 11605, 13805, 16247, 19327, 52961, 81235, 96635, 264805, 370727, 582571, 1853635, 2912855, 4077997, 20389985

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20389984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20389985 can be divided by 32 positive divisors. The sum of these divisors (counting 20389985) is 1, the average is 0.03125.

Base conversion 20389985

Base System Value
2 Binary 1001101110010000001100001
3 Ternary 1102100220210122
4 Quaternary 1031302001201
5 Quinary 20204434420
6 Senary 2005010025
8 Octal 115620141
10 Decimal 20389985
12 Duodecimal 69b3915
16 Hexadecimal 1372061
20 Vigesimal 678ej5
36 Base36 c510h

Cryptographic Hash Functions

md5 e46ffcf02cdb53453dfb4c76acf1daca
sha1 21bb7f81666846c84706e0ce113d6c5e7d2621cb
sha256 1e00ebeb9afaf430e9a3d6a285dc5ef72a78d78e9693d15db5ffc27b9a9f82c8
sha512 3c0a7c12033af42187bc56fb72e96e15d80a443f2e9de39aa3682d8f950bc6ba6c6745451d014531a69345b465e0ea719cf1d73dfe7bef7472fd1733e95028d8
ripemd-160 18f1f6f29f46d5d6bb6c9d129be9c9da574bf984

20389985 as geometric shapes

Circle

Radius = n
Diameter 40779970
Circumference 128114054.16561
Area 1.306121821363E+15

Sphere

Radius = n
Volume 3.5509072461019E+22
Surface area 5.224487285452E+15
Circumference 128114054.16561

Square

Length = n
Perimeter 81559940
Area 415751488300225
Diagonal 28835793.323584

Cube

Length = n
Surface area 2494508929801350
Volume 8.4771666101693E+21
Space diagonal 35316489.985567

Equilateral Triangle

Length = n
Perimeter 61169955
Area 1.8002567526459E+14
Altitude 17658244.992784

Triangular Pyramid

Length = n
Surface area 1.8002567526459E+14
Volume 9.9904366588314E+20
Height 9611931.1078613