18987051 (number)

18987051 is an odd 8-digits composite number following 18987050 and preceding 18987052. In scientific notation, it is written as 1.8987051 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 12545792 positive integers (up to 18987051) that are relatively prime to 18987051.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred eighty-seven thousand fifty-one

Notation

Scientific notation 1.8987051 × 10^7
Engineering notation 1.8987051 × 10^6

Prime Factorization of 18987051

Prime Factorization 3 × 113 × 56009

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18987051
Product of the distinct prime numbers

The prime factorization of 18987051 is 3 × 113 × 56009. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18987051)

Multiplication

n×y
n×2 37974102
n×3 56961153
n×4 75948204
n×5 94935255

Division

n÷y
n÷2 9493525.5
n÷3 6329017
n÷3 4746762.75
n÷5 3797410.2

Exponentiation

ny
n2 360508105676601
n3 6.844985788395E+21
n4 1.2996609425853E+29
n5 2.4676728599575E+36

Nth Root

y√n
2√n 4357.4133382088
3√n 266.77953156422
4√n 66.010706239282
5√n 28.55561404125

Divisors of 18987051

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18987050
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18987051 can be divided by 8 positive divisors. The sum of these divisors (counting 18987051) is 1, the average is 0.125.

Base conversion 18987051

Base System Value
2 Binary 1001000011011100000101011
3 Ternary 1022201122100010
4 Quaternary 1020123200223
5 Quinary 14330041201
6 Senary 1514543003
8 Octal 110334053
10 Decimal 18987051
12 Duodecimal 6437a63
16 Hexadecimal 121b82b
20 Vigesimal 5id7cb
36 Base36 bayi3

Cryptographic Hash Functions

md5 6cbeb0ec50b5868a9cc00b4dd52e5a27
sha1 5dbec9f6be324c62b10d7a0f3abb59902fcaa4a8
sha256 39aeeea65ba3074750c9b1a6db934addec712c9ae20144c803fbfaaea52286ff
sha512 f3509c3934658afaf5f41728637b09fa2dda6d1cf316e812f4a1ce8b563d8c54f23a110a2dfbee15bc57b8d273efe5a8793b8ce5d54d1c322a2449212cbfdade
ripemd-160 0f96781a2e8c07f6c604d3d7f5f49d1e54eb2067

18987051 as geometric shapes

Circle

Radius = n
Diameter 37974102
Circumference 119299159.86987
Area 1.1325696163532E+15

Sphere

Radius = n
Volume 2.8672209422331E+22
Surface area 4.5302784654127E+15
Circumference 119299159.86987

Square

Length = n
Perimeter 75948204
Area 360508105676601
Diagonal 26851745.03367

Cube

Length = n
Surface area 2163048634059606
Volume 6.844985788395E+21
Space diagonal 32886537.017901

Equilateral Triangle

Length = n
Perimeter 56961153
Area 1.5610458889307E+14
Altitude 16443268.508951

Triangular Pyramid

Length = n
Surface area 1.5610458889307E+14
Volume 8.0668931134994E+20
Height 8950581.6778899