18687130 (number)

18687130 is an even 8-digits composite number following 18687129 and preceding 18687131. In scientific notation, it is written as 1.8687130 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 5822880 positive integers (up to 18687130) that are relatively prime to 18687130.

Interesting facts

Basic properties

Name

Name eighteen million six hundred eighty-seven thousand one hundred thirty

Notation

Scientific notation 1.8687130 × 10^7
Engineering notation 1.8687130 × 10^6

Prime Factorization of 18687130

Prime Factorization 2 × 11 × 245 × 3467

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18687130
Product of the distinct prime numbers

The prime factorization of 18687130 is 2 × 11 × 245 × 3467. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 9, 43, 88, 403, 638, 1726, 8519, 23106, 36393, 365057, 728661, 4069423, 4917115, 92911680, 65893355, 638203817, 207346677, 7985673039, 4781889043

Basic calculations (n = 18687130)

Multiplication

n×y
n×2 37374260
n×3 56061390
n×4 74748520
n×5 93435650

Division

n÷y
n÷2 9343565
n÷3 6229043.3333333
n÷3 4671782.5
n÷5 3737426

Exponentiation

ny
n2 349208827636900
n3 6.5257107591983E+21
n4 1.2194680529954E+29
n5 2.2788358037172E+36

Nth Root

y√n
2√n 4322.8613209308
3√n 265.36737938135
4√n 65.748470103348
5√n 28.464825211619

Divisors of 18687130

1, 2, 11, 22, 245, 490, 2695, 3467, 5390, 6934, 38137, 76274, 849415, 1698830, 9343565, 18687130

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 -18687129
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 18687130 can be divided by 16 positive divisors. The sum of these divisors (counting 18687130) is 1, the average is 0.0625.

Base conversion 18687130

Base System Value
2 Binary 1000111010010010010011010
3 Ternary 1022011101220221
4 Quaternary 1013102102122
5 Quinary 14240442010
6 Senary 1504310254
8 Octal 107222232
10 Decimal 18687130
12 Duodecimal 631238a
16 Hexadecimal 11d249a
20 Vigesimal 5gfhga
36 Base36 b4j2y

Cryptographic Hash Functions

md5 7978f01c8151ad2e39108f96015a5fa1
sha1 1149a3ae72944a754f3220d7046f6ee887f96d12
sha256 41e1d2f3f30f90df1e0535dfd99c5cbea84fd6fb6933ad10bc33605553498004
sha512 0de58d3fadb57cea9dc9acbe63c4be4821f9bb3febebc40252a30bc031cfbeee1c9bdf26802f078966e456372aa0e26f917c70c8ce090541619b31c3d6395210
ripemd-160 0dba37e50aacca3d3b0c08676998fcd863293aa7

18687130 as geometric shapes

Circle

Radius = n
Diameter 37374260
Circumference 117414700.64935
Area 1.0970718874728E+15

Sphere

Radius = n
Volume 2.7334833307399E+22
Surface area 4.3882875498912E+15
Circumference 117414700.64935

Square

Length = n
Perimeter 74748520
Area 349208827636900
Diagonal 26427592.687829

Cube

Length = n
Surface area 2095252965821400
Volume 6.5257107591983E+21
Space diagonal 32367058.607645

Equilateral Triangle

Length = n
Perimeter 56061390
Area 1.5121185797967E+14
Altitude 16183529.303822

Triangular Pyramid

Length = n
Surface area 1.5121185797967E+14
Volume 7.6906238831519E+20
Height 8809197.5626097