18984945 (number)

18984945 is an odd 8-digits composite number following 18984944 and preceding 18984946. In scientific notation, it is written as 1.8984945 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 8491968 positive integers (up to 18984945) that are relatively prime to 18984945.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred eighty-four thousand nine hundred forty-five

Notation

Scientific notation 1.8984945 × 10^7
Engineering notation 1.8984945 × 10^6

Prime Factorization of 18984945

Prime Factorization 15 × 7 × 47 × 3847

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18984945
Product of the distinct prime numbers

The prime factorization of 18984945 is 15 × 7 × 47 × 3847. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 4, 8, 1, 403, 549, 7638, 4363, 23079, 60987, 356828, 120099, 400395, 9978652, 85350214, 21773236, 725973999, 721635307, 3375533778, 9351402693

Basic calculations (n = 18984945)

Multiplication

n×y
n×2 37969890
n×3 56954835
n×4 75939780
n×5 94924725

Division

n÷y
n÷2 9492472.5
n÷3 6328315
n÷3 4746236.25
n÷5 3796989

Exponentiation

ny
n2 360428136653025
n3 6.8427083508102E+21
n4 1.2990844169117E+29
n5 2.4663046205426E+36

Nth Root

y√n
2√n 4357.1716743778
3√n 266.76966767563
4√n 66.008875724237
5√n 28.554980548545

Divisors of 18984945

1, 7, 15, 47, 105, 329, 705, 3847, 4935, 26929, 57705, 180809, 403935, 1265663, 2712135, 18984945

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 -18984944
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 18984945 can be divided by 16 positive divisors. The sum of these divisors (counting 18984945) is 1, the average is 0.0625.

Base conversion 18984945

Base System Value
2 Binary 1001000011010111111110001
3 Ternary 1022201112110010
4 Quaternary 1020122333301
5 Quinary 14330004240
6 Senary 1514525133
8 Octal 110327761
10 Decimal 18984945
12 Duodecimal 64367a9
16 Hexadecimal 121aff1
20 Vigesimal 5id275
36 Base36 bawvl

Cryptographic Hash Functions

md5 312479854c616cc593f905371690cb46
sha1 9545e1d2b6dce6efc8da75e76ac361546befc6bc
sha256 3bf5319830882448ab7dff7bd87b7a8ab6b7c91fc37fc1a4bf1e2782d1606f5a
sha512 c2a700b9c7fa223b14c6afc0a48323114672cf047b22c1877ca83b211fee343f44e58aab03205aba7c52597b9e16bb64e6e78259f11af840732fe50e62e90e47
ripemd-160 34c84a6484047febed82e41dc31db36eec9016d3

18984945 as geometric shapes

Circle

Radius = n
Diameter 37969890
Circumference 119285927.48161
Area 1.1323183862562E+15

Sphere

Radius = n
Volume 2.8662669714084E+22
Surface area 4.5292735450248E+15
Circumference 119285927.48161

Square

Length = n
Perimeter 75939780
Area 360428136653025
Diagonal 26848766.699907

Cube

Length = n
Surface area 2162568819918150
Volume 6.8427083508102E+21
Space diagonal 32882889.318901

Equilateral Triangle

Length = n
Perimeter 56954835
Area 1.560699612901E+14
Altitude 16441444.65945

Triangular Pyramid

Length = n
Surface area 1.560699612901E+14
Volume 8.0642091275661E+20
Height 8949588.8999691