20181490 (number)

20181490 is an even 8-digits composite number following 20181489 and preceding 20181491. In scientific notation, it is written as 2.0181490 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 6919344 positive integers (up to 20181490) that are relatively prime to 20181490.

Interesting facts

Basic properties

Name

Name twenty million one hundred eighty-one thousand four hundred ninety

Notation

Scientific notation 2.0181490 × 10^7
Engineering notation 2.0181490 × 10^6

Prime Factorization of 20181490

Prime Factorization 2 × 5 × 7 × 288307

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20181490
Product of the distinct prime numbers

The prime factorization of 20181490 is 2 × 5 × 7 × 288307. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 21, 21, 585, 979, 4060, 830, 23360, 83986, 838371, 951248, 9778222, 1584587, 33245559, 54187103, 472115454, 28203725, 9300316588, 8228519240

Basic calculations (n = 20181490)

Multiplication

n×y
n×2 40362980
n×3 60544470
n×4 80725960
n×5 100907450

Division

n÷y
n÷2 10090745
n÷3 6727163.3333333
n÷3 5045372.5
n÷5 4036298

Exponentiation

ny
n2 407292538620100
n3 8.2197702952362E+21
n4 1.6588721201561E+29
n5 3.3478511104208E+36

Nth Root

y√n
2√n 4492.3813284271
3√n 272.26035660563
4√n 67.025229044197
5√n 28.906176185564

Divisors of 20181490

1, 2, 5, 7, 10, 14, 35, 70, 288307, 576614, 1441535, 2018149, 2883070, 4036298, 10090745, 20181490

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 -20181489
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 20181490 can be divided by 16 positive divisors. The sum of these divisors (counting 20181490) is 1, the average is 0.0625.

Base conversion 20181490

Base System Value
2 Binary 1001100111111000111110010
3 Ternary 1101222022210121
4 Quaternary 1030333013302
5 Quinary 20131301430
6 Senary 2000320454
8 Octal 114770762
10 Decimal 20181490
12 Duodecimal 691312a
16 Hexadecimal 133f1f2
20 Vigesimal 662dea
36 Base36 c0k4y

Cryptographic Hash Functions

md5 b646e6906b3b560399c616072576569a
sha1 2a9053070b9d937b542f38f3d6b811b55da48727
sha256 0a2cf7f8d4005b4dcd7d3e78ceddbd621c8b72d88514317f3027df30981ce508
sha512 89a05d4ab1e08091a6d4242ddb3cccf191ceb7d0cc057499d5a83444d1cbd80b2484de1280e1a7eb5481917f6837fa7d91a8528cacb73365bfeef1235dc76239
ripemd-160 09fce8d951397cbb7b13e7a42d9dc63f3af4391c

20181490 as geometric shapes

Circle

Radius = n
Diameter 40362980
Circumference 126804041.44499
Area 1.2795472471908E+15

Sphere

Radius = n
Volume 3.4430893298279E+22
Surface area 5.1181889887634E+15
Circumference 126804041.44499

Square

Length = n
Perimeter 80725960
Area 407292538620100
Diagonal 28540936.866897

Cube

Length = n
Surface area 2443755231720600
Volume 8.2197702952362E+21
Space diagonal 34955366.052443

Equilateral Triangle

Length = n
Perimeter 60544470
Area 1.7636284260843E+14
Altitude 17477683.026222

Triangular Pyramid

Length = n
Surface area 1.7636284260843E+14
Volume 9.6870921925954E+20
Height 9513645.622299