18887984 (number)

18887984 is an even 8-digits composite number following 18887983 and preceding 18887985. In scientific notation, it is written as 1.8887984 × 10^7. The sum of its digits is 53. It has a total of 6 prime factors and 20 positive divisors. There are 9242688 positive integers (up to 18887984) that are relatively prime to 18887984.

Interesting facts

Basic properties

Name

Name eighteen million eight hundred eighty-seven thousand nine hundred eighty-four

Notation

Scientific notation 1.8887984 × 10^7
Engineering notation 1.8887984 × 10^6

Prime Factorization of 18887984

Prime Factorization 2 × 2 × 2 × 2 × 47 × 25117

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2360998
Product of the distinct prime numbers

The prime factorization of 18887984 is 2 × 2 × 2 × 2 × 47 × 25117. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 9, 94, 67, 925, 378, 1849, 3965, 56322, 8738, 306209, 210026, 3694758, 1122034, 24008302, 78825541, 555920556, 461771139, 2993836823, 3354278183

Basic calculations (n = 18887984)

Multiplication

n×y
n×2 37775968
n×3 56663952
n×4 75551936
n×5 94439920

Division

n÷y
n÷2 9443992
n÷3 6295994.6666667
n÷3 4721996
n÷5 3777596.8

Exponentiation

ny
n2 356755939584256
n3 6.7384004787724E+21
n4 1.2727480042865E+29
n5 2.4039643940994E+36

Nth Root

y√n
2√n 4346.0308328405
3√n 266.3147385318
4√n 65.924432745686
5√n 28.525753251979

Divisors of 18887984

1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 25117, 50234, 100468, 200936, 401872, 1180499, 2360998, 4721996, 9443992, 18887984

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18887983
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18887984 can be divided by 20 positive divisors. The sum of these divisors (counting 18887984) is 1, the average is 0.05.

Base conversion 18887984

Base System Value
2 Binary 1001000000011010100110000
3 Ternary 1022112121102222
4 Quaternary 1020003110300
5 Quinary 14313403414
6 Senary 1512500212
8 Octal 110032460
10 Decimal 18887984
12 Duodecimal 63aa668
16 Hexadecimal 1203530
20 Vigesimal 5i0jj4
36 Base36 b8u28

Cryptographic Hash Functions

md5 c5f4313311af2854881955f01031baad
sha1 21eda29b3228437c5098d343fe48667c9f43d5e3
sha256 c06f083a81e450618eb0cbb7fdf2463568a4322ba1845d966af1cd2137f9b926
sha512 4c8b6b4042e40dabdca453019f2ccd1fcea735a10c9267249e47cc25a74a200d95fdacd192819e1ba55aed274566c74aba1d042c11d1031385bb8ec98fd9fc20
ripemd-160 277f9d7c7a4b7265f4797bef4a78f74df7a144c2

18887984 as geometric shapes

Circle

Radius = n
Diameter 37775968
Circumference 118676703.55104
Area 1.1207818389224E+15

Sphere

Radius = n
Volume 2.822574592141E+22
Surface area 4.4831273556897E+15
Circumference 118676703.55104

Square

Length = n
Perimeter 75551936
Area 356755939584256
Diagonal 26711643.138686

Cube

Length = n
Surface area 2140535637505536
Volume 6.7384004787724E+21
Space diagonal 32714947.940548

Equilateral Triangle

Length = n
Perimeter 56663952
Area 1.5447985331548E+14
Altitude 16357473.970274

Triangular Pyramid

Length = n
Surface area 1.5447985331548E+14
Volume 7.9412811214844E+20
Height 8903881.0462287