20081385 (number)

20081385 is an odd 8-digits composite number following 20081384 and preceding 20081386. In scientific notation, it is written as 2.0081385 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 32 positive divisors. There are 10145088 positive integers (up to 20081385) that are relatively prime to 20081385.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0081385 × 10^7
Engineering notation 2.0081385 × 10^6

Prime Factorization of 20081385

Prime Factorization 3 × 5 × 3 × 19 × 3 × 7829

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2231265
Product of the distinct prime numbers

The prime factorization of 20081385 is 3 × 5 × 3 × 19 × 3 × 7829. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20081385)

Multiplication

n×y
n×2 40162770
n×3 60244155
n×4 80325540
n×5 100406925

Division

n÷y
n÷2 10040692.5
n÷3 6693795
n÷3 5020346.25
n÷5 4016277

Exponentiation

ny
n2 403262023518225
n3 8.0980599501485E+21
n4 1.6262025961201E+29
n5 3.2656400420688E+36

Nth Root

y√n
2√n 4481.2258367549
3√n 271.80945149849
4√n 66.941958716152
5√n 28.877442814575

Divisors of 20081385

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 -20081384
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 20081385 can be divided by 32 positive divisors. The sum of these divisors (counting 20081385) is 1, the average is 0.03125.

Base conversion 20081385

Base System Value
2 Binary 1001100100110101011101001
3 Ternary 1101210020111000
4 Quaternary 1030212223221
5 Quinary 20120101020
6 Senary 1554225213
8 Octal 114465351
10 Decimal 20081385
12 Duodecimal 6885209
16 Hexadecimal 1326ae9
20 Vigesimal 65a395
36 Base36 byew9

Cryptographic Hash Functions

md5 88de770257b0eb2fa0a68af18c197382
sha1 ece00b974fded93981c92c203d74229b5ec36a5a
sha256 ac7453d03156be77b8397d372409c8966ed1a5fc304ba6529f2eb0c0609cade0
sha512 57891dc3ec30a55d7cafe2567b97c6468bbb86900e25ed11bc80bf4376b06dc183595d188dade08754688b351eee4066de5e809397e03a9767294f1132b8ee0c
ripemd-160 8d818fe9d13844567c9750329f629c75338a0b3f

20081385 as geometric shapes

Circle

Radius = n
Diameter 40162770
Circumference 126175063.17982
Area 1.2668850105566E+15

Sphere

Radius = n
Volume 3.3921074196955E+22
Surface area 5.0675400422264E+15
Circumference 126175063.17982

Square

Length = n
Perimeter 80325540
Area 403262023518225
Diagonal 28399367.018236

Cube

Length = n
Surface area 2419572141109350
Volume 8.0980599501485E+21
Space diagonal 34781979.106352

Equilateral Triangle

Length = n
Perimeter 60244155
Area 1.7461757837415E+14
Altitude 17390989.553176

Triangular Pyramid

Length = n
Surface area 1.7461757837415E+14
Volume 9.543655175342E+20
Height 9466455.6727452