20405986 (number)

20405986 is an even 8-digits composite number following 20405985 and preceding 20405987. In scientific notation, it is written as 2.0405986 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 10191168 positive integers (up to 20405986) that are relatively prime to 20405986.

Interesting facts

Basic properties

Name

Name twenty million four hundred five thousand nine hundred eighty-six

Notation

Scientific notation 2.0405986 × 10^7
Engineering notation 2.0405986 × 10^6

Prime Factorization of 20405986

Prime Factorization 2 × 937 × 10889

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20405986
Product of the distinct prime numbers

The prime factorization of 20405986 is 2 × 937 × 10889. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20405986)

Multiplication

n×y
n×2 40811972
n×3 61217958
n×4 81623944
n×5 102029930

Division

n÷y
n÷2 10202993
n÷3 6801995.3333333
n÷3 5101496.5
n÷5 4081197.2

Exponentiation

ny
n2 416404264632196
n3 8.4971395944249E+21
n4 1.7339251160388E+29
n5 3.5382451642936E+36

Nth Root

y√n
2√n 4517.2985289883
3√n 273.26616467062
4√n 67.210851274093
5√n 28.970201563753

Divisors of 20405986

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 -20405985
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 20405986 can be divided by 8 positive divisors. The sum of these divisors (counting 20405986) is 1, the average is 0.125.

Base conversion 20405986

Base System Value
2 Binary 1001101110101111011100010
3 Ternary 1102101201202021
4 Quaternary 1031311323202
5 Quinary 20210442421
6 Senary 2005212054
8 Octal 115657342
10 Decimal 20405986
12 Duodecimal 6a0102a
16 Hexadecimal 1375ee2
20 Vigesimal 67aej6
36 Base36 c5dcy

Cryptographic Hash Functions

md5 ea168830a2ccec98ca52ec5efd9786af
sha1 5c81f4091cad8f9e97e90275f31a9dec5e327bc1
sha256 bc1902f0487a7b78efee8a10da9ed933197a46c474549c0ca940ee2861cf60a8
sha512 747994b31cdf57fe64cb65cd68fb50ef0d1708c03538f0bd961e4ec6399901f7e99d7ecac35ac4cf4ea01be6b8b7b6d0fb824baef3365dde66270849c4ab440f
ripemd-160 45d4483b3da74f9197a122e3e6f3076e2277ced3

20405986 as geometric shapes

Circle

Radius = n
Diameter 40811972
Circumference 128214591.41371
Area 1.308172578692E+15

Sphere

Radius = n
Volume 3.559273510183E+22
Surface area 5.2326903147679E+15
Circumference 128214591.41371

Square

Length = n
Perimeter 81623944
Area 416404264632196
Diagonal 28858422.154796

Cube

Length = n
Surface area 2498425587793176
Volume 8.4971395944249E+21
Space diagonal 35344204.530539

Equilateral Triangle

Length = n
Perimeter 61217958
Area 1.8030833570783E+14
Altitude 17672102.26527

Triangular Pyramid

Length = n
Surface area 1.8030833570783E+14
Volume 1.0013975046511E+21
Height 9619474.0515985