18187428 (number)

18187428 is an even 8-digits composite number following 18187427 and preceding 18187429. In scientific notation, it is written as 1.8187428 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 24 positive divisors. There are 5196240 positive integers (up to 18187428) that are relatively prime to 18187428.

Interesting facts

Basic properties

Name

Name eighteen million one hundred eighty-seven thousand four hundred twenty-eight

Notation

Scientific notation 1.8187428 × 10^7
Engineering notation 1.8187428 × 10^6

Prime Factorization of 18187428

Prime Factorization 2 × 2 × 21 × 7 × 30931

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9093714
Product of the distinct prime numbers

The prime factorization of 18187428 is 2 × 2 × 21 × 7 × 30931. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 7, 57, 13, 253, 444, 1505, 7224, 2363, 33825, 640023, 41840, 2497812, 5110831, 72742189, 65077846, 994158735, 452970033, 2863603869, 9407957497

Basic calculations (n = 18187428)

Multiplication

n×y
n×2 36374856
n×3 54562284
n×4 72749712
n×5 90937140

Division

n÷y
n÷2 9093714
n÷3 6062476
n÷3 4546857
n÷5 3637485.6

Exponentiation

ny
n2 330782537255184
n3 6.016083579986E+21
n4 1.0941708695298E+29
n5 1.990015390927E+36

Nth Root

y√n
2√n 4264.6720858701
3√n 262.98063055219
4√n 65.304456860693
5√n 28.310937917379

Divisors of 18187428

1, 2, 4, 7, 14, 21, 28, 42, 84, 147, 294, 588, 30931, 61862, 123724, 216517, 433034, 649551, 866068, 1299102, 2598204, 4546857, 9093714, 18187428

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18187427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18187428 can be divided by 24 positive divisors. The sum of these divisors (counting 18187428) is 1, the average is 0.041666666666667.

Base conversion 18187428

Base System Value
2 Binary 1000101011000010010100100
3 Ternary 1021020000110110
4 Quaternary 1011120102210
5 Quinary 14123444203
6 Senary 1445453020
8 Octal 105302244
10 Decimal 18187428
12 Duodecimal 6111170
16 Hexadecimal 11584a4
20 Vigesimal 5dd8b8
36 Base36 attic

Cryptographic Hash Functions

md5 dd6b18474df47cd052eacee025f7efcd
sha1 8838d6059bbe33d350bb0dd9ddb885dcdf85485f
sha256 172728e2f70a45d12fa7d8e073d52c183431246ef60adae56c3ab9dcb51a0d7d
sha512 b5780cbd39afb96f5184341bbc914ae2048fc438ae7523e943ba7c6d71878b25a1a58133916f1e6078b155126938c99df338b6cf7bbe8ea426b98ba2b17ff972
ripemd-160 016dc36291c1b8d9fa4899b459ec04147d92a94d

18187428 as geometric shapes

Circle

Radius = n
Diameter 36374856
Circumference 114274980.38499
Area 1.0391839889767E+15

Sphere

Radius = n
Volume 2.5200111971022E+22
Surface area 4.1567359559067E+15
Circumference 114274980.38499

Square

Length = n
Perimeter 72749712
Area 330782537255184
Diagonal 25720907.342284

Cube

Length = n
Surface area 1984695223531104
Volume 6.016083579986E+21
Space diagonal 31501549.355001

Equilateral Triangle

Length = n
Perimeter 54562284
Area 1.4323304019563E+14
Altitude 15750774.6775

Triangular Pyramid

Length = n
Surface area 1.4323304019563E+14
Volume 7.0900224926552E+20
Height 8573635.7807614