18987025 (number)

18987025 is an odd 8-digits composite number following 18987024 and preceding 18987026. In scientific notation, it is written as 1.8987025 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 14665280 positive integers (up to 18987025) that are relatively prime to 18987025.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred eighty-seven thousand twenty-five

Notation

Scientific notation 1.8987025 × 10^7
Engineering notation 1.8987025 × 10^6

Prime Factorization of 18987025

Prime Factorization 725 × 26189

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18987025
Product of the distinct prime numbers

The prime factorization of 18987025 is 725 × 26189. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18987025)

Multiplication

n×y
n×2 37974050
n×3 56961075
n×4 75948100
n×5 94935125

Division

n÷y
n÷2 9493512.5
n÷3 6329008.3333333
n÷3 4746756.25
n÷5 3797405

Exponentiation

ny
n2 360507118350625
n3 6.8449576688013E+21
n4 1.2996538238147E+29
n5 2.4676559644116E+36

Nth Root

y√n
2√n 4357.4103547864
3√n 266.77940979226
4√n 66.010683641259
5√n 28.555606220695

Divisors of 18987025

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18987024
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18987025 can be divided by 4 positive divisors. The sum of these divisors (counting 18987025) is 1, the average is 0.25.

Base conversion 18987025

Base System Value
2 Binary 1001000011011100000010001
3 Ternary 1022201122022011
4 Quaternary 1020123200101
5 Quinary 14330041100
6 Senary 1514542521
8 Octal 110334021
10 Decimal 18987025
12 Duodecimal 6437a41
16 Hexadecimal 121b811
20 Vigesimal 5id7b5
36 Base36 bayhd

Cryptographic Hash Functions

md5 ac3354497298017dd03cd51ffe8a0f41
sha1 da2d901c2714b0b2c5fb62d9f7377d0fe9e95b58
sha256 77812e8a0f37494981710deb226350dbe6b09f300ad02816bdd714e2dcbac87c
sha512 ed66479905d08fcabf64aac970e9b8aea0222b63ef9c67e3ced06f9ab138da31ccacbdf7a82bfe5c6e60884414801345ca9e0858f44e78cbcb2480882d45aedd
ripemd-160 cc4e885b90bf5fde82f04b8f0c7e0d5bbb947096

18987025 as geometric shapes

Circle

Radius = n
Diameter 37974050
Circumference 119298996.50705
Area 1.1325665145771E+15

Sphere

Radius = n
Volume 2.8672091635252E+22
Surface area 4.5302660583086E+15
Circumference 119298996.50705

Square

Length = n
Perimeter 75948100
Area 360507118350625
Diagonal 26851708.264117

Cube

Length = n
Surface area 2163042710103750
Volume 6.8449576688013E+21
Space diagonal 32886491.98458

Equilateral Triangle

Length = n
Perimeter 56961075
Area 1.5610416136838E+14
Altitude 16443245.99229

Triangular Pyramid

Length = n
Surface area 1.5610416136838E+14
Volume 8.0668599742404E+20
Height 8950569.4213723