19987149 (number)

19987149 is an odd 8-digits composite number following 19987148 and preceding 19987150. In scientific notation, it is written as 1.9987149 × 10^7. The sum of its digits is 48. It has a total of 5 prime factors and 24 positive divisors. There are 10541664 positive integers (up to 19987149) that are relatively prime to 19987149.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred eighty-seven thousand one hundred forty-nine

Notation

Scientific notation 1.9987149 × 10^7
Engineering notation 1.9987149 × 10^6

Prime Factorization of 19987149

Prime Factorization 3 × 13 × 7 × 7 × 10459

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2855307
Product of the distinct prime numbers

The prime factorization of 19987149 is 3 × 13 × 7 × 7 × 10459. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 19987149)

Multiplication

n×y
n×2 39974298
n×3 59961447
n×4 79948596
n×5 99935745

Division

n÷y
n÷2 9993574.5
n÷3 6662383
n÷3 4996787.25
n÷5 3997429.8

Exponentiation

ny
n2 399486125148201
n3 7.9845887067697E+21
n4 1.5958916418592E+29
n5 3.1897324033695E+36

Nth Root

y√n
2√n 4470.6989386448
3√n 271.38361090147
4√n 66.863285431131
5√n 28.850289137441

Divisors of 19987149

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -19987148
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 19987149 can be divided by 24 positive divisors. The sum of these divisors (counting 19987149) is 1, the average is 0.041666666666667.

Base conversion 19987149

Base System Value
2 Binary 1001100001111101011001101
3 Ternary 1101121110012210
4 Quaternary 1030033223031
5 Quinary 20104042044
6 Senary 1552221033
8 Octal 114175315
10 Decimal 19987149
12 Duodecimal 683a779
16 Hexadecimal 130facd
20 Vigesimal 64i7h9
36 Base36 bwe6l

Cryptographic Hash Functions

md5 d169142040fbe081f9f6923b99d5116f
sha1 fa792f73a4b6e1841febc491461862b6088bc89f
sha256 f270b54e13fd575fdc64ae134b8aeb241615fb0083a577e9cb54e7b5a361ab52
sha512 b1740b1d875b4b05ff426b3f4349d9423d39eb083ee10a01f62a09c66f142263a06fd73ff7de8ac8bd11537c0dc1e363f95df183faac791eea0ad0343b70ea01
ripemd-160 e00eb4caee54d9cec0aa99ce2987ddd981ca5655

19987149 as geometric shapes

Circle

Radius = n
Diameter 39974298
Circumference 125582960.92921
Area 1.2550226759766E+15

Sphere

Radius = n
Volume 3.3445766964165E+22
Surface area 5.0200907039066E+15
Circumference 125582960.92921

Square

Length = n
Perimeter 79948596
Area 399486125148201
Diagonal 28266097.188972

Cube

Length = n
Surface area 2396916750889206
Volume 7.9845887067697E+21
Space diagonal 34618757.566449

Equilateral Triangle

Length = n
Perimeter 59961447
Area 1.7298256641888E+14
Altitude 17309378.783225

Triangular Pyramid

Length = n
Surface area 1.7298256641888E+14
Volume 9.4099280325707E+20
Height 9422032.3963239