20389986 (number)

20389986 is an even 8-digits composite number following 20389985 and preceding 20389987. In scientific notation, it is written as 2.0389986 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 6775296 positive integers (up to 20389986) that are relatively prime to 20389986.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0389986 × 10^7
Engineering notation 2.0389986 × 10^6

Prime Factorization of 20389986

Prime Factorization 2 × 9 × 353 × 3209

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20389986
Product of the distinct prime numbers

The prime factorization of 20389986 is 2 × 9 × 353 × 3209. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 8, 57, 20, 693, 847, 8087, 5142, 55726, 50832, 774052, 352216, 9173382, 7928522, 52107904, 45100857, 487665705, 228882420, 8157968858, 1652741384

Basic calculations (n = 20389986)

Multiplication

n×y
n×2 40779972
n×3 61169958
n×4 81559944
n×5 101949930

Division

n÷y
n÷2 10194993
n÷3 6796662
n÷3 5097496.5
n÷5 4077997.2

Exponentiation

ny
n2 415751529080196
n3 8.4771678574238E+21
n4 1.7284933393252E+29
n5 3.5243954989934E+36

Nth Root

y√n
2√n 4515.5272117439
3√n 273.19472481842
4√n 67.197672666127
5√n 28.965657125961

Divisors of 20389986

1, 2, 9, 18, 353, 706, 3177, 3209, 6354, 6418, 28881, 57762, 1132777, 2265554, 10194993, 20389986

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20389985
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20389986 can be divided by 16 positive divisors. The sum of these divisors (counting 20389986) is 1, the average is 0.0625.

Base conversion 20389986

Base System Value
2 Binary 1001101110010000001100010
3 Ternary 1102100220210200
4 Quaternary 1031302001202
5 Quinary 20204434421
6 Senary 2005010030
8 Octal 115620142
10 Decimal 20389986
12 Duodecimal 69b3916
16 Hexadecimal 1372062
20 Vigesimal 678ej6
36 Base36 c510i

Cryptographic Hash Functions

md5 7d3ce06b467a35188e0ef7f22ac82201
sha1 8ebd0919ff1895deb890930b456f146275aa7bde
sha256 b6591bf0a29c76f98d3a65b70ae43a50d16089babecdf4d9745a0261e1b9dec8
sha512 7ce35c179e310c5c458e36b15b5d5a396859d67131c1584d2ccca9dd71183260c8d344f57bcbeed65f9f01800d42ee237b82f8bf95f456637c08959a964eaff5
ripemd-160 8e90458e660d769df0c6855fa7051ee7ab4e91b8

20389986 as geometric shapes

Circle

Radius = n
Diameter 40779972
Circumference 128114060.4488
Area 1.3061219494771E+15

Sphere

Radius = n
Volume 3.5509077685507E+22
Surface area 5.2244877979083E+15
Circumference 128114060.4488

Square

Length = n
Perimeter 81559944
Area 415751529080196
Diagonal 28835794.737798

Cube

Length = n
Surface area 2494509174481176
Volume 8.4771678574238E+21
Space diagonal 35316491.717618

Equilateral Triangle

Length = n
Perimeter 61169958
Area 1.8002569292284E+14
Altitude 17658245.858809

Triangular Pyramid

Length = n
Surface area 1.8002569292284E+14
Volume 9.990438128735E+20
Height 9611931.5792658