19987290 (number)

19987290 is an even 8-digits composite number following 19987289 and preceding 19987291. In scientific notation, it is written as 1.9987290 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors. There are 5329872 positive integers (up to 19987290) that are relatively prime to 19987290.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred eighty-seven thousand two hundred ninety

Notation

Scientific notation 1.9987290 × 10^7
Engineering notation 1.9987290 × 10^6

Prime Factorization of 19987290

Prime Factorization 2 × 9 × 5 × 3 × 74027

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 19987290
Product of the distinct prime numbers

The prime factorization of 19987290 is 2 × 9 × 5 × 3 × 74027. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 4, 93, 47, 822, 969, 9002, 8699, 70817, 46754, 826785, 177717, 7715334, 6570111, 34045195, 7803889, 777594133, 911763075, 7498602058, 3228796775

Basic calculations (n = 19987290)

Multiplication

n×y
n×2 39974580
n×3 59961870
n×4 79949160
n×5 99936450

Division

n÷y
n÷2 9993645
n÷3 6662430
n÷3 4996822.5
n÷5 3997458

Exponentiation

ny
n2 399491761544100
n3 7.9847576905928E+21
n4 1.5959366754161E+29
n5 3.1898449153177E+36

Nth Root

y√n
2√n 4470.7147079634
3√n 271.38424906151
4√n 66.86340335313
5√n 28.850329842389

Divisors of 19987290

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 74027, 148054, 222081, 370135, 444162, 666243, 740270, 1110405, 1332486, 1998729, 2220810, 3331215, 3997458, 6662430, 9993645, 19987290

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 -19987289
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 19987290 can be divided by 32 positive divisors. The sum of these divisors (counting 19987290) is 1, the average is 0.03125.

Base conversion 19987290

Base System Value
2 Binary 1001100001111101101011010
3 Ternary 1101121110102000
4 Quaternary 1030033231122
5 Quinary 20104043130
6 Senary 1552221430
8 Octal 114175532
10 Decimal 19987290
12 Duodecimal 683a876
16 Hexadecimal 130fb5a
20 Vigesimal 64i84a
36 Base36 bweai

Cryptographic Hash Functions

md5 077153608a0341c45e9ddfc34ed48b27
sha1 5461e6c4b3d3d56ba894008c72b889415b899d3a
sha256 d482e8f3ca998b727bddadc62f507c0f5cb9bfe0158660247260e4f013ff88f1
sha512 4f1edfd95d570e5cb99a95abd7f6e234d17bcd4156e799a3b468c3422a785a9214f40e0898781c334680c5468af19528933de82856214c971eb71b92174ba8f0
ripemd-160 0ed740eee8bf1769362059c61ba01be37c89a972

19987290 as geometric shapes

Circle

Radius = n
Diameter 39974580
Circumference 125583846.85834
Area 1.2550403832366E+15

Sphere

Radius = n
Volume 3.3446474801948E+22
Surface area 5.0201615329464E+15
Circumference 125583846.85834

Square

Length = n
Perimeter 79949160
Area 399491761544100
Diagonal 28266296.593084

Cube

Length = n
Surface area 2396950569264600
Volume 7.9847576905928E+21
Space diagonal 34619001.785613

Equilateral Triangle

Length = n
Perimeter 59961870
Area 1.7298500704989E+14
Altitude 17309500.892807

Triangular Pyramid

Length = n
Surface area 1.7298500704989E+14
Volume 9.410127181916E+20
Height 9422098.8643614