19987345 (number)

19987345 is an odd 8-digits composite number following 19987344 and preceding 19987346. In scientific notation, it is written as 1.9987345 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors. There are 13106016 positive integers (up to 19987345) that are relatively prime to 19987345.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred eighty-seven thousand three hundred forty-five

Notation

Scientific notation 1.9987345 × 10^7
Engineering notation 1.9987345 × 10^6

Prime Factorization of 19987345

Prime Factorization 35 × 7 × 23 × 3547

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 19987345
Product of the distinct prime numbers

The prime factorization of 19987345 is 35 × 7 × 23 × 3547. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 3, 2, 21, 304, 355, 4260, 5343, 34304, 39034, 760147, 725359, 5032889, 5785354, 25401276, 53499721, 307799920, 757441015, 7763258136, 2093839237

Basic calculations (n = 19987345)

Multiplication

n×y
n×2 39974690
n×3 59962035
n×4 79949380
n×5 99936725

Division

n÷y
n÷2 9993672.5
n÷3 6662448.3333333
n÷3 4996836.25
n÷5 3997469

Exponentiation

ny
n2 399493960149025
n3 7.9848236069148E+21
n4 1.5959542419555E+29
n5 3.1898888038178E+36

Nth Root

y√n
2√n 4470.7208591009
3√n 271.38449798837
4√n 66.863449350904
5√n 28.850345720143

Divisors of 19987345

1, 7, 23, 35, 161, 245, 805, 3547, 5635, 24829, 81581, 124145, 571067, 869015, 2855335, 19987345

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 -19987344
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 19987345 can be divided by 16 positive divisors. The sum of these divisors (counting 19987345) is 1, the average is 0.0625.

Base conversion 19987345

Base System Value
2 Binary 1001100001111101110010001
3 Ternary 1101121110111001
4 Quaternary 1030033232101
5 Quinary 20104043340
6 Senary 1552222001
8 Octal 114175621
10 Decimal 19987345
12 Duodecimal 683a901
16 Hexadecimal 130fb91
20 Vigesimal 64i875
36 Base36 bwec1

Cryptographic Hash Functions

md5 d4901c7296557edd037a0887ebba9b33
sha1 661c91c0785c69c10370555f37227ef2eba7d254
sha256 239e7739db861ee3877529274da3359e5efca87e8110366f55e3b500dcfdce43
sha512 4991aa8d4316fd9d6a66413f85760e95fb382d1ef8f8d713dcd2efd6a18a96e11dd8211ae64c41165d3bfad4f87741d64d73aad5b5da0268eede76ca4f6750e1
ripemd-160 1912f8700ab9a57587da3a12b8890f67d7349280

19987345 as geometric shapes

Circle

Radius = n
Diameter 39974690
Circumference 125584192.43353
Area 1.2550472903577E+15

Sphere

Radius = n
Volume 3.3446750911592E+22
Surface area 5.0201891614307E+15
Circumference 125584192.43353

Square

Length = n
Perimeter 79949380
Area 399493960149025
Diagonal 28266374.37483

Cube

Length = n
Surface area 2396963760894150
Volume 7.9848236069148E+21
Space diagonal 34619097.048408

Equilateral Triangle

Length = n
Perimeter 59962035
Area 1.7298595907375E+14
Altitude 17309548.524204

Triangular Pyramid

Length = n
Surface area 1.7298595907375E+14
Volume 9.4102048650465E+20
Height 9422124.79161