18642720 (number)

18642720 is an even 8-digits composite number following 18642719 and preceding 18642721. In scientific notation, it is written as 1.8642720 × 10^7. The sum of its digits is 30. It has a total of 7 prime factors and 24 positive divisors. There are 4971264 positive integers (up to 18642720) that are relatively prime to 18642720.

Interesting facts

Basic properties

Name

Name eighteen million six hundred forty-two thousand seven hundred twenty

Notation

Scientific notation 1.8642720 × 10^7
Engineering notation 1.8642720 × 10^6

Prime Factorization of 18642720

Prime Factorization 2 × 2 × 2 × 2 × 2 × 15 × 38839

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1165170
Product of the distinct prime numbers

The prime factorization of 18642720 is 2 × 2 × 2 × 2 × 2 × 15 × 38839. Since it has a total of 7 prime factors.

Most popular turbo-numbers

10, 8, 38, 12, 641, 476, 167, 6822, 29973, 12808, 634848, 442357, 3631856, 7889989, 94802206, 56212293, 542470871, 309916941, 5224425918, 8473413161

Basic calculations (n = 18642720)

Multiplication

n×y
n×2 37285440
n×3 55928160
n×4 74570880
n×5 93213600

Division

n÷y
n÷2 9321360
n÷3 6214240
n÷3 4660680
n÷5 3728544

Exponentiation

ny
n2 347551008998400
n3 6.4792961464747E+21
n4 1.2079170385581E+29
n5 2.2518859133067E+36

Nth Root

y√n
2√n 4317.721621411
3√n 265.15699727474
4√n 65.709372401591
5√n 28.451282989992

Divisors of 18642720

1, 2, 4, 8, 15, 16, 30, 32, 60, 120, 240, 480, 38839, 77678, 155356, 310712, 582585, 621424, 1165170, 1242848, 2330340, 4660680, 9321360, 18642720

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 -18642719
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 18642720 can be divided by 24 positive divisors. The sum of these divisors (counting 18642720) is 1, the average is 0.041666666666667.

Base conversion 18642720

Base System Value
2 Binary 1000111000111011100100000
3 Ternary 1022002011000010
4 Quaternary 1013013130200
5 Quinary 14233031340
6 Senary 1503324520
8 Octal 107073440
10 Decimal 18642720
12 Duodecimal 62b0740
16 Hexadecimal 11c7720
20 Vigesimal 5ga6g0
36 Base36 b3ktc

Cryptographic Hash Functions

md5 d9a3e2d1242ae6b3025d8aae81571d7e
sha1 b2f0647cac5a0c37d2653ab323ae217841291b30
sha256 2d2f6dc4990dd1d36639c75f888a79037877e6657b1c9a6ed37adc9cfac1b8f4
sha512 88e3aad8bfc9589e4b4d6c1c72dee631fcf4bae7c70b44ebbb24f48bc7096e37af1164e658e744b4cdac9c8b4020fbb1d6abf4d73b120efab144767acc213c47
ripemd-160 7bb7ccd28ee1660d5ae8166e9ae66159bb309947

18642720 as geometric shapes

Circle

Radius = n
Diameter 37285440
Circumference 117135664.38986
Area 1.0918636966171E+15

Sphere

Radius = n
Volume 2.7140412232263E+22
Surface area 4.3674547864684E+15
Circumference 117135664.38986

Square

Length = n
Perimeter 74570880
Area 347551008998400
Diagonal 26364787.463524

Cube

Length = n
Surface area 2085306053990400
Volume 6.4792961464747E+21
Space diagonal 32290138.23128

Equilateral Triangle

Length = n
Perimeter 55928160
Area 1.5049400145176E+14
Altitude 16145069.11564

Triangular Pyramid

Length = n
Surface area 1.5049400145176E+14
Volume 7.6359237374802E+20
Height 8788262.4878414