19987628 (number)

19987628 is an even 8-digits composite number following 19987627 and preceding 19987629. In scientific notation, it is written as 1.9987628 × 10^7. The sum of its digits is 50. It has a total of 4 prime factors and 12 positive divisors. There are 9972480 positive integers (up to 19987628) that are relatively prime to 19987628.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred eighty-seven thousand six hundred twenty-eight

Notation

Scientific notation 1.9987628 × 10^7
Engineering notation 1.9987628 × 10^6

Prime Factorization of 19987628

Prime Factorization 2 × 2 × 491 × 10177

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9993814
Product of the distinct prime numbers

The prime factorization of 19987628 is 2 × 2 × 491 × 10177. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 5, 74, 28, 727, 637, 1537, 7223, 43039, 79852, 170380, 105980, 1706466, 8387765, 68366245, 59733768, 454178178, 405557474, 737834192, 3078324021

Basic calculations (n = 19987628)

Multiplication

n×y
n×2 39975256
n×3 59962884
n×4 79950512
n×5 99938140

Division

n÷y
n÷2 9993814
n÷3 6662542.6666667
n÷3 4996907
n÷5 3997525.6

Exponentiation

ny
n2 399505273066384
n3 7.9851627820893E+21
n4 1.5960446320785E+29
n5 3.1901146377381E+36

Nth Root

y√n
2√n 4470.7525093657
3√n 271.38577882299
4√n 66.863686028858
5√n 28.850427417854

Divisors of 19987628

1, 2, 4, 491, 982, 1964, 10177, 20354, 40708, 4996907, 9993814, 19987628

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -19987627
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 19987628 can be divided by 12 positive divisors. The sum of these divisors (counting 19987628) is 1, the average is 0.083333333333333.

Base conversion 19987628

Base System Value
2 Binary 1001100001111110010101100
3 Ternary 1101121110212112
4 Quaternary 1030033302230
5 Quinary 20104101003
6 Senary 1552223152
8 Octal 114176254
10 Decimal 19987628
12 Duodecimal 683aab8
16 Hexadecimal 130fcac
20 Vigesimal 64i918
36 Base36 bwejw

Cryptographic Hash Functions

md5 498b72d0e0b506f811149d1a0597b853
sha1 0db92475095f1c28148e1cc394f037670fa7d9b6
sha256 ff70a76f02fff2f24fefa088d4fffa85a0e3eea7b065a5abe4e4315b203437ed
sha512 8347fba0d2b127f78431acf39b7abd9418858af853b88acda15e11cc54e24fbcc539417505167e87dfed0a1cc768421f58b55a308f2ac9e8c4cd6846cee74571
ripemd-160 43a7c54131c67e9afcbbbed511dbe3e1634fa307

19987628 as geometric shapes

Circle

Radius = n
Diameter 39975256
Circumference 125585970.57497
Area 1.2550828309357E+15

Sphere

Radius = n
Volume 3.3448171645241E+22
Surface area 5.0203313237429E+15
Circumference 125585970.57497

Square

Length = n
Perimeter 79950512
Area 399505273066384
Diagonal 28266774.597268

Cube

Length = n
Surface area 2397031638398304
Volume 7.9851627820893E+21
Space diagonal 34619587.218786

Equilateral Triangle

Length = n
Perimeter 59962884
Area 1.7299085771066E+14
Altitude 17309793.609393

Triangular Pyramid

Length = n
Surface area 1.7299085771066E+14
Volume 9.410604586823E+20
Height 9422258.1990894