19987746 (number)

19987746 is an even 8-digits composite number following 19987745 and preceding 19987747. In scientific notation, it is written as 1.9987746 × 10^7. The sum of its digits is 51. It has a total of 5 prime factors and 32 positive divisors. There are 6288000 positive integers (up to 19987746) that are relatively prime to 19987746.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.9987746 × 10^7
Engineering notation 1.9987746 × 10^6

Prime Factorization of 19987746

Prime Factorization 2 × 3 × 31 × 41 × 2621

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 19987746
Product of the distinct prime numbers

The prime factorization of 19987746 is 2 × 3 × 31 × 41 × 2621. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 6, 15, 78, 86, 86, 2004, 9104, 42742, 77809, 124012, 866720, 1971918, 6312601, 2532632, 55596447, 622975233, 624898836, 776749476, 1660087074

Basic calculations (n = 19987746)

Multiplication

n×y
n×2 39975492
n×3 59963238
n×4 79950984
n×5 99938730

Division

n÷y
n÷2 9993873
n÷3 6662582
n÷3 4996936.5
n÷5 3997549.2

Exponentiation

ny
n2 399509990160516
n3 7.9853042077909E+21
n4 1.5960823223806E+29
n5 3.1902088054833E+36

Nth Root

y√n
2√n 4470.7657062298
3√n 271.38631287767
4√n 66.863784713623
5√n 28.85046148235

Divisors of 19987746

1, 2, 3, 6, 31, 41, 62, 82, 93, 123, 186, 246, 1271, 2542, 2621, 3813, 5242, 7626, 7863, 15726, 81251, 107461, 162502, 214922, 243753, 322383, 487506, 644766, 3331291, 6662582, 9993873, 19987746

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 -19987745
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 19987746 can be divided by 32 positive divisors. The sum of these divisors (counting 19987746) is 1, the average is 0.03125.

Base conversion 19987746

Base System Value
2 Binary 1001100001111110100100010
3 Ternary 1101121111000220
4 Quaternary 1030033310202
5 Quinary 20104101441
6 Senary 1552223510
8 Octal 114176442
10 Decimal 19987746
12 Duodecimal 683ab96
16 Hexadecimal 130fd22
20 Vigesimal 64i976
36 Base36 bwen6

Cryptographic Hash Functions

md5 ae05712a4689dc0ee66ed40a43ce39b0
sha1 343a8eb14f69c3c877dca469681279a80784c0b1
sha256 069306f4b1324b17798fa8963a74d220dd1ed7b64c9827439f203ff7ca7f8de5
sha512 a86a7db916457b7d320cf63b719ef48c4acc277988b006b90490369b55b7df5003f3348723f122b769089f70caf1e02e0cca339e7c39d19858c15332e29561b9
ripemd-160 a995331108e009c759ab1d5adb8129346a818036

19987746 as geometric shapes

Circle

Radius = n
Diameter 39975492
Circumference 125586711.99084
Area 1.255097650124E+15

Sphere

Radius = n
Volume 3.3448764047834E+22
Surface area 5.020390600496E+15
Circumference 125586711.99084

Square

Length = n
Perimeter 79950984
Area 399509990160516
Diagonal 28266941.474469

Cube

Length = n
Surface area 2397059940963096
Volume 7.9853042077909E+21
Space diagonal 34619791.600782

Equilateral Triangle

Length = n
Perimeter 59963238
Area 1.7299290027234E+14
Altitude 17309895.800391

Triangular Pyramid

Length = n
Surface area 1.7299290027234E+14
Volume 9.4107712586107E+20
Height 9422313.8248229